EP1421072A1

EP1421072A1 - Polyester polycarbonates made from special diphenols

Info

Publication number: EP1421072A1
Application number: EP02762440A
Authority: EP
Inventors: Rolf Wehrmann; Helmut-Werner Heuer
Original assignee: Bayer MaterialScience AG
Current assignee: Covestro Deutschland AG
Priority date: 2001-08-24
Filing date: 2002-08-12
Publication date: 2004-05-26
Also published as: US6696543B2; JP2005507956A; CN1294128C; US20030120024A1; WO2003020714A1; TW583183B; KR20040044469A; DE10141621A1; CN1564819A

Abstract

The invention relates to novel polyester polycarbonates made from special diphenols, to methods for the production thereof, to their use for producing shaped bodies and extrudates, and to the shaped bodies and extrudates that can be obtained therefrom, in particular, substrates, which contain these shaped bodies and extrudates and are used for optical data carriers. The invention also relates to the special diphenols themselves and to the production and use thereof for producing polyester polycarbonates.

Description

Polvester polycarbonates made from special diphenols

The present invention relates to new polyester polycarbonates from special diphenols, processes for their preparation, their use for the production of moldings and extrudates, the moldings and extrudates obtainable therefrom, in particular substrates for optical data carriers containing them, and special diphenols themselves and their preparation and use for the preparation of polycarbonates.

In the course of new developments in optical data carriers, the requirements for the carrier material are becoming increasingly demanding and require targeted new material development, for example with the aim of lower birefringence and less water absorption, in particular for the shorter writing and reading wavelengths to be expected in the future, which pose new challenges.

However, low birefringence and low water absorption are not the only important properties for the substrate materials of optical data media, the optimal combination of other properties such as high transparency, heat resistance, flowability, toughness, high purity, low density, low inhomogeneities or particle proportions is required, as well especially low raw material and manufacturing costs.

The materials currently proposed for these applications fail to meet one or more of these requirements, which is why there is a need for new materials for higher storage densities.

Polyester polycarbonates from linear or cyclic difunctional aliphatic

Carboxylic acids, diphenols and carbonate precursors are described, for example, in EP-A 433 716, US-A 4 983 706 and US-A 5 274 068, which describe various processes for their synthesis. The skilled worker is aware that the installation of Dicarboxylic acids lead to a lowering of the glass temperature and to an increase in fluidity. For use as substrate materials, however, the reduction in the glass temperature means that the usability of the discs is restricted, since this reduces their climate resistance. In addition, due to the polar ester groups, these products have one for use in optical

Data storage unfavorable high water absorption. As EP-A 433 716 teaches, the carboxylic acids known for polyester polycarbonates can only be incorporated in significant quantities in the phase interface process by means of an elaborate multi-stage procedure.

In addition, polyester polycarbonates, in particular those made from linear and longer-chain dicarboxylic acids, have an undesirable tendency to crystallize, which has a particularly disruptive effect on very slow cooling, which can be necessary for molding extremely fine structures and reducing process-related birefringence.

Dimer fatty acids as possible acid building blocks in polyester polycarbonates are listed, for example, in DE-A 43 06 961, US-A 5 134 220 and EP-A 443 058. There is no precise definition of the acids to be used. However, thermo-oxidative problems occur with non-hydrogenated dimer fatty acids. In addition, the common commercial products contain more than 3 mol% of three- and polybasic carboxylic acids, which leads to a high zero viscosity, which is undesirable when molding microstructures such as pits or grooves. For this reason, these polyester polycarbonates have so far generally not been considered suitable for substrates for optical data storage media.

Special copolycarbonates based on spirobischromane and other diphenols are described in JP-A 10251395 and JP-A 08123050 as binders for photoreceptors. Spirobischroman-based polymers, for example polyethers or polycarbonates, are disclosed in JP-A 3162413, the latter being spirochromatic types constructed exclusively from hydroquinone and acetone, ie they have a strict 1,4-linkage.

The products described in the prior art are polymers which have too high a glass temperature for use as a substrate material for optical data storage media.

The invention is therefore based on the object of providing polyester polycarbonates which do not have the disadvantages mentioned above, but in particular have improved optical properties and are easy to produce.

This object is surprisingly achieved by polyester carbonates which are produced by one of the customary production processes for polycarbonates, characterized in that, in addition to the customary carbonic acid derivatives, dicarboxylic acids of the formula (I)

HOOC-T-COOH (I)

where T is a branched or linear, saturated or unsaturated alkyl, arylalkyl or cycloalkyl part of 8-40 carbons, preferably saturated, linear

Alkyldicarboxylic acids with 8-40 carbons, particularly preferably with 12-36 carbons,

and, optionally in addition to the usual diphenols, special diphenols of the formula (Ua) and / or (ü)

(na) (practice)

in the

Rj to R ₇ independently of one another, each for hydrogen, halogen, ad to Cπ-alkyl radical, preferably Ci to C ₃ alkyl radical, particularly preferably methyl, a C ₆ to Ci ₉ aryl, preferably phenyl radical, a C ₇ to C 1 ₂ - Aralkyl, preferably phenyl-C 1 to C ₄ -alkyl, particularly preferably hydrogen, halogen, preferably chlorine or bromine, can be used for the preparation.

In this context, "proportionately" means that the special diphenols of the formulas Ha and Ui represent> 0% of the total amount of diphenols used.

If no other conventional diphenols are used, the proportion of the diphenols of the formulas Ha and Ui is 100% of the diphenols used. In all other cases, the respective molar parts of the individual diphenols add up to 100%. In these mixtures of diphenols, the proportion of the diphenols is of the formulas Ua and

Usually preferred> 10 mol%, particularly preferably> 20 mol% and very particularly preferably> 25 mol%. All conventional diphenols can also be used in combination with the diphenols of the formulas Ua and ü diphenols.

According to the invention, fatty acids, particularly preferably hydrogenated dimeric fatty acids, are particularly suitable as dicarboxylic acids. Examples of dicarboxylic acids of the formula (I) or mixtures of such fatty acids are

Sebacic acid, dodecanedioic acid, hydrogenated dimer fatty acids, e.g. Pripol 1009 from Uniqema.

Uniqema's Pripol 1009 is a mixture of hydrogenated dimeric fatty acids which, according to Uniqema, is composed approximately as follows:

Dodecanedioic acid and Pripol 1009 are particularly preferred.

It may also contain a small amount of monofunctional and polyfunctionalized fatty acids. Products with very small proportions of these components, in particular with small proportions of tri- and polyfunctionalized acids, are particularly suitable for the production of the polyester polycarbonates according to the invention. Preference is therefore given to dimer fatty acids with a proportion of three- and multi-functionalized acids of less than about 1.5%, determined by gas chromatography. The invention also includes mixtures of dimeric fatty acids with other difunctional carboxylic acids with 4 to 40 carbon atoms such as adipic acid, sebacic acid, α, ω-dodecanedicarboxylic acid, terephthalic acid, ice or trans-9-octadecen-α, ω-dicarboxylic acid or hydroxycarboxylic acids with 4 to 40 carbon atoms such as salicylic acid or p-hydroxybenzoic acid.

For the purposes of the invention, the dimer fatty alcohols obtained from dimer fatty acids by reduction or mixtures of esters of dimer fatty alcohols with dimer fatty acids can also be used and converted to polyester polycarbonates.

Particularly preferred diphenols of the formulas (Ua) and (Ü) are:

Diphenol (in), which is obtained from resorcinol and acetone, is very particularly preferred.

The compounds of the formulas Ha, Hb and HI can be used both individually and in mixtures with one another.

The diphenols of the formulas Ua, Hb and HJ are new, with the exception of the compounds in which R ¹ to R ⁵ in the formula Ua are hydrogen and in the formula R ⁶ and R ⁷ are simultaneously methyl groups, and likewise their preparation and use Production of polyester carbonates Subject of the present application.

The polyester polycarbonates according to the invention are to be illustrated by way of example and preferred, but not by way of limitation, by the following structural description of the polyester carbonates:

Polyester carbonates containing recurring, bifunctional structural units A according to formula (IV),

where the square brackets indicate a possibly repeating structural unit, stands for a mixture of divalent hydrocarbon radicals which contain 30 to 42 carbon atoms, preferably 32 to 38, particularly preferably 34 carbon atoms. D corresponds substantially to formula IVa and / or IVb and / or IVc and / or IVd and / or JVe.

in which

Ei, E ₂ , E ₃ and E in formula Ic and Id each represent one of the substituents - (CH ₂ ) j-, - (CH ₂ ) _j -, - (CH ₂ ) CH ₃ and - (CH ₂ ) ιCH and a, b, c, d, e, f, g, h, i, j, k, 1, m, n, o and p independently of one another represent an integer between 1 and 10,

and at least one of the other bifunctional structural units B different from A according to formula (V)

- (^ O -R -O -C- ^ (V),

O

where the square brackets denote an optionally repeating structural unit, and the formulas A and B may overlap in the region of the carbonyl group,

wherein the radical -O-R-O- stands for diphenolate radicals derived from the above-mentioned diphenols of the formulas (Ua) and (Hb) or conventional diphenols, such as bisphenol A or bisphenol TMC.

With "usual diphenols" in the present context they are usually used

Polycarbonate production usable diphenols meant, see. e.g. US-A 3 028 635, 2 999 835, 3 148 172, 2 991 273, 3 271 367, 4 982 014 and 2 999 846, DE-A 1 570 703, 2 063 050, 2 036 052, 2 211 956 and 3,832,396, French Patent 1,561,518, the monograph "H. Schnell, Chemistry and Physics of Polycarbonates, Interscience Publishers, New York 1964", p. 77 ff. And JP-A

62039/1986, 62040/1986 and 105550/1986.

Illustrative, but not restrictive, here are 2,2-bis (4-hydroxyphenyl) propane (bisphenol A), 1,1-bis (4-hydroxyphenyl) -3,3,5-trimethylcyclohexane (bisphenol TMC), 1,3-bis [2- (4-hydroxyphenyl) -2-propyl] benzene, 1,1-bis (4-hydroxyphenyl) -1-phenylethane, 1,3-bis (4-hydroxyphenyl) cyclohexane (bisphenol Z ), in particular 2,2-bis (4-hydroxyphenyl) propane (bisphenol A) and l, l-bis (4-hydroxyphenyl) -3,3,5-trimethylcyclohexane (bisphenol TMC), very particularly preferably 2.2 -Bis called (4-hydroxyphenyl) propane (bisphenol A).

In addition, bifunctional monophenols such as resorcinol, hydroquinone or their derivatives substituted one or more times by C ₁ to C ₂ alkyl, C ₆ to C ₁ -aryl or C to cig-aralkyl can also be used for the preparation of the polyester polycarbonates according to the invention.

It has been found that the substrates made from the polyester polycarbonates according to the invention are distinguished by a surprisingly particularly low water absorption, surprisingly low birefringence, very low tendency to crystallize, low refractive index, good flowability and low density and a low glass transition temperature

The substrates for data carriers made of the new polyester polycarbonates also have high transparency, good mechanical properties, especially at low temperatures, and high flowability.

Hydrogenated dimeric fatty acids in connection with this invention are to be understood as acids which can be obtained by dimerization of unsaturated monobasic fatty acids with 16 to 22 carbon atoms and subsequent hydrogenation. The required acids can be obtained, for example, from plant or animal sources. Synthesis and properties are eg ^th ed Encyclopedia of Chemical Technology, Vol 8, 4, John Wiley & Sons.. 1993, pages 223-237 set. These hydrogenated dimer fatty acids can still contain small amounts of unsaturated aliphatic groups. Dimer fatty acids with an iodine number of less than about 15 are preferred.

The diphenols of formula (Ha) and (Hb) can be prepared according to the reaction sequences shown in Schemes 1 and 2.

Scheme 1:

The diphenols prepared according to Scheme 1 are obtained after condensation of ketones (eg acetone, methyl ethyl ketone etc., from Aldrich) and optionally substituted resorcinol derivatives (eg 4-hexylresorcinol from Aldrich) with elimination of water under acidic conditions. Alternatively, the condensation can also originate from phoron (2,6-dimethyl-2,5-heptadien-4-one) (from Aldrich) or substituted phorons. Inorganic acids such as sulfuric acid are suitable as acids. Acidic cation exchangers such as Lewatite ^® are also possible. In JP-A 10265476 corresponding condensation methods for the production of spiro building blocks by reaction of resorcinol with ketones. The condensations are usually carried out in common solvents such as hydrocarbons, toluene, NMP or chlorobenzene at temperatures between 20 and 200 ° C, preferably 30-180 ° C, particularly preferably 50-150 ° C and very particularly preferably 60-130 ° C ,

Preferred polyester polycarbonates according to the invention are those which have 0.5 to 49 mol%, preferably 2 to 40 mol%, particularly preferably 5 to 20 mol%, based on 100 mol% of the bifunctional structural units A and B, structural units A.

Preferred, particularly preferred or very particularly preferred are compounds or embodiments which fall under the definitions mentioned as preferred, particularly preferred or very particularly preferred or which make use of the definitions or explanations and parameters listed in preferred ranges.

However, the general definitions or explanations and parameters listed above or in preferred areas can also be combined with one another, i.e. between the respective areas and preferred areas.

The polyester polycarbonates according to the invention are distinguished in particular by a glass transition temperature of 120 to 195 ° C., preferably 125-180 ° C., particularly preferably 130 to 170 ° C. and very particularly preferably 135 to 165 ° C.

Furthermore, the polyester polycarbonates according to the invention are notable for a low water absorption of <0.40%, preferably <0.38%, particularly preferably <0.36%, very particularly preferably <0.35% when saturated.

In this context, under "Saturation" is the value after 14 days

Moisture storage in 94% relative humidity at 30 ° C is understood. The The water content is then determined using quantitative Karl Fischer titration.

The substrates according to the invention can be produced by the known three methods (cf. H. Schnell "Chemistry and Physics of Polycarbonates",

Polymer review, Volume IX, page 27 ff; Interscience Publishers, New York 1964, and DE 1495 626 A, DE 22 32 877 A, DE 27 03 376 A, EP 274 544 A, DE 30 00 610 A, DE 38 32 396 A).

1. After the solution process in disperse phase, so-called "two-phase interface process"

The diphenols and bifunctional acids to be used are dissolved in an aqueous alkaline phase. For this purpose, the chain terminators required for the preparation of the polyester polycarbonates according to the invention are dissolved in an aqueous alkaline phase, preferably sodium hydroxide solution, in an amount of 1.0 to 20 mol%, based on mol diphenol plus acid to be used according to the invention, or to this and an inert solution organic phase, added in bulk. Then in the presence of an inert, preferably polycarbonate-dissolving, organic phase is reacted with phosgene. The reaction temperature is between

0 ° C and 50 ° C.

The addition of the necessary chain terminators, branching agents and acids according to the invention can also during the phosgenation or as long as chlorocarbonic acid esters are present in the synthesis mixture, in bulk, as a melt, as a solution in

Alkali or inert organic solvents.

The reaction can be accelerated by catalysts such as tertiary amines or onium salts. Tributylamine, triethylamine and N-ethylpiperidine and tetrabutylammonium, tetrathylammonium and N-ethylpiperidinium salts are preferred. In addition to or instead of the diphenols, their chlorocarbonic acid esters and / or bischlorocarbonic acid esters can also be used or added during the synthesis. Instead of dimer fatty acids, their acid chlorides can also be used. Suitable solvents are, for example, methylene chloride, chlorobenzene, toluene and mixtures thereof.

2. According to the solution process in a homogeneous phase, also called "pyridine process"

Here, the diphenols and acids according to the invention are dissolved in organic bases such as pyridine, optionally with the addition of further organic solvents, then, as described under 1., the chain terminators and branching agents required for the preparation of the polyester polycarbonates according to the invention are optionally added.

Then it is reacted with phosgene. The reaction temperature is between 10 and 50 ° C. Suitable organic bases besides pyridine are e.g. Triethylamine, tri-butylamine, N-ethylpiperidine and N, N-dialkyl-substituted anilines, such as N, N-dimethylaniline. Suitable solvents are, for example, methylene chloride, chlorobenzene, toluene, tetrahydrofuran, 1,3-dioxolane and mixtures thereof.

In addition to the diphenols, up to 50 mol%, based on the phenols used, of their bischlorocarbonic acid esters can also be used. Some or all of the fatty acids according to the invention can be replaced by their acid chlorides. The necessary chain terminators, branching agents and acids according to the invention can also be added during the phosgenation or as long as chlorocarbonic acid esters are present in the synthesis mixture, in bulk, as a melt or as a solution in inert organic solvents.

Processes 1 and 2 isolate the polyester polycarbonates according to the invention in a known manner. Suitable processing procedures are particularly in particular the precipitation, the spray drying and the evaporation of the solvent in vacuo.

3. After the melt transesterification process

In the melt transesterification process, the addition of diphenyl carbonate in stoichiometric amounts or in excess of up to 40%, to diphenol melt / fatty acids with constant removal of phenol and, if appropriate, the excess of diphenyl carbonate, is condensed until a suitable molecular weight is reached, or the reaction comes to a standstill. This is usually carried out under inert conditions, at approx. 280 ° C and in an oil pump vacuum. This process is carried out using conventional catalysts such as alkali metal ions, e.g. Li, Na, K, transition metal compounds, e.g. those based on Sn, Zn, Ti or nitrogen or phosphorus bases, preferably ammonium and phosphonium salts, as a one-stage or two-stage process, that is to say with a possible separate condensation of the oligomers and the polymer.

Phosphonium salts for the purposes of the invention are those of the formula (V)

wherein R ^{1 '4,} the same or different Cι-Cι ₀ alkyls, C _ö -Cio-aryl, C -Cιo-

Aralkyls or C ₅ -C ₆ cycloalkyls can be, preferably methyl or C ₆ -C ₄ aryls, particularly preferably methyl or phenyl, and X ^"is an anion such as hydroxide, sulfate, hydrogen sulfate, hydrogen carbonate, carbonate, a halide, preferably chloride , or an alcoholate of the formula OR, where RC ₆ -C ₁₄ aryl or C ₇ -C ₁₂ aralkyl, preferably phenyl, can be.

Preferred catalysts are Tetraphenylphosphonium chloride, tetraphenylphosphonium hydroxide, tetraphenylphosphoniumphenolate, particularly preferably tetraphenylphosphoniumphenolate.

Instead of the acids to be used according to the invention, their aromatic or aliphatic esters, e.g. Methyl, ethyl, isopropyl or phenyl esters can be used.

In a known manner, chain terminators and / or branching agents can also be used for the production of the polyester polycarbonates according to the invention. The corresponding chain terminators and / or branching devices are, inter alia, from EP-A 335 214 (pages 3-5) and DE-A 30 07 934 (pages 8-9) and EP-A 411 433 (pages 4 and 5) and EP-A 691 361 (page 5) is known. In addition, the branching agents and / or chain terminators can be replaced in whole or in part by dimer fatty acids with a higher content of tri- and / or monofunctional carboxylic acids.

Furthermore, the substrates made from the polyester polycarbonates according to the invention can be mixed with various thermoplastic polymers in a weight ratio of 2:98 to 98: 2 and used as blends.

The polyester polycarbonates according to the invention have average molecular weights M _w (weight average, determined by gel chromatography (column combination from Merck consisting of PS4000, PS400 and PS40) after prior calibration

Bisphenol-A-PC (calibration is based on absolute values determined by means of light scattering and MALDI) of at least 6,000, preferably between 7,000 and 45,000, particularly preferably between 7,000 and 40,000, very particularly preferably between 9,000 and 40,000, in particular between 9,000 and 30,000. Before, during or after their processing, the polyester polycarbonates for the production of the data carriers according to the invention can contain the additives customary for thermoplastic polycarbonates, such as stabilizers, for example thermal stabilizers, organic phosphites, optionally in combination with monomeric or oligomeric epoxides; UV stabilizers, especially those based on nitrogenous ones

Heterocycles such as triazoles; optical brighteners, flame retardants, in particular fluorine-containing, such as perfluorinated salts of organic acids, polyperfluoroethylene, salts of organic sulfonic acids and combinations thereof; mold release agents; Flow aids; Fire retardants; Colorant; pigments; antistatic agents; Fillers and reinforcing materials, divided minerals, fibrous materials, e.g. Alkyl and aryl phosphites, phosphates,

-phosphines, low molecular weight carboxylic acid esters, halogen compounds, salts, chalk, quartz, inorganic or organic nanoparticles, glass and carbon fibers can be added in the usual amounts. Examples of such additives can be found in e.g. in WO 99/55772, pp. 15-25, and in "Plastics Additives", R. Gächter and H. Müller, Hanser Publishers 1983.

The data carriers according to the invention or other molded bodies can be produced in a known manner by injection molding or injection molding on known machines.

In addition to the described polyesters polycarbonates, the invention also relates to extrudates and moldings containing them, such as optical lenses, plates and foils which contain the polyesters polycarbonates according to the invention, and the use of these polyesters polycarbonates to produce such moldings and extrudates. The excellent properties of these polyesters are particularly useful for optical lenses and data storage devices.

Examples of possible uses of the polyester carbonate according to the invention are, but are not limited to, the following: 1. Safety windows, which are known to be required in many areas of buildings, vehicles and aircraft, and as shields for helmets.

2. Production of foils, especially ski foils.

3. Production of blow bodies (see, for example, US Pat. No. 2,964,794), for example 1 to 5 gallon water bottles.

4. Production of translucent panels, in particular of twin-wall panels, for example for covering buildings such as train stations, greenhouses and lighting systems.

5. Manufacture of optical data storage. 6. For the production of traffic light housings or traffic signs.

7. For the production of foams (see for example DE-AS 1 031 507).

8. For the production of threads and wires (see for example DE-AS 1 137 167 and DE-OS 1 785 137).

9. As translucent plastics containing glass fibers for lighting purposes (see for example DE-OS 1 554 020).

10. As translucent plastics containing barium sulfate, titanium dioxide and or zirconium oxide or organic polymeric acrylate rubbers (EP-A 634 445, EP-A 269324) for the production of translucent and light-scattering moldings. 11. For the production of precision injection molded particles, such as lens holders. For this purpose, polycarbonates with a glass fiber content are used, which may additionally contain about 1 to 10% by weight of MoS ₂ , based on the total weight.

12. For the production of optical device parts, in particular lenses for photo and film cameras (see for example DE-OS 2 701 173).

13. As a light transmission carrier, in particular as an optical fiber cable (see for example EP-AI 0 089 801).

14. As electrical insulating materials for electrical conductors and for connector housings and connectors. 15. Manufacture of mobile phone cases with improved resistance to perfume, aftershave and perspiration. 16. Network interface devices

17. As a carrier material for organic photoconductors.

18. For the manufacture of lights, e.g. Headlight lamps, as so-called "head lamps", scattered light panes or inner lenses. 19. For medical applications, e.g. Oxygenators, dialyzers.

20. For food applications such as Bottles, dishes and chocolate molds.

21. For applications in the automotive sector where contact with fuels and lubricants can occur, such as bumpers in the form of suitable blends with ABS or suitable rubbers.

22. For sporting goods such as Slalom poles or ski shoe buckles.

23. For household items such as Kitchen sinks and mailbox housings.

24. For housings such as Electrical distribution cabinets.

25. Housings for electric toothbrushes and hair dryers. 26. Transparent washing machines - portholes with improved resistance to the washing solution.

27. Safety glasses, prescription glasses.

28. Lamp covers for kitchen furnishings with improved resistance to kitchen vapors, especially oil vapors. 29. Packaging foils for medicinal products.

30. Chip boxes and chip carriers

31. For other applications, such as Barn doors or animal cages.

Polyesters polycarbonates according to the invention, containing structural units A and B, the structural unit B of which are derived from the compounds of the formulas Ha and Hb, but in particular from formula HI, and 0.5 to 49 mol%, preferably 2 to 40 mol%, particularly preferably 10 to 25 mol %, based on 100 mol% of the bifunctional structural units A and B, containing bifunctional ester structural units A are, owing to their low rheo-optical constant C _R , particularly suitable for the production of the data carriers according to the invention. In particular for the production of data carriers according to the invention, the substrates must have a high degree of purity. This is achieved by reducing the residual monomer, solvent, foreign particle (inorganic or organic type, in particular salts and dust) and the chlorine content to the lowest possible values in a known manner when working up and isolating the substrate resin.

This is described, for example, in EP-A 380 002 (pages 4 to 6) or EP-A 691 361 (pages 10 to 14), the disclosure of which is referred to in this regard.

The data carriers according to the invention can be designed in various forms. Known forms such as optical cards or cylindrical perforated disks such as compact disks (CD), CD recordables (CD-R), CD rewritable (CD-RW), digital versatile disks (DVD) or mini disks (MD) are particularly preferred.

Information storage layers (e.g. phase change

Layers, magneto-optical layers, dyes, fluorescent dyes, photopolymers), dielectric (e.g. Si / N), reflective (e.g. silver, gold or aluminum), semi-reflective (e.g. Si, Ge), protective layers (e.g. acrylic paints) and other functional layers. Different sequences of such layers are possible.

Several layers of the substrate or layers with other substrates can be laminated on top of one another. The stored information can be embossed in the substrate (e.g. as a pit structure) or stored in separate information layers. The information can be read out through the transparent substrate or from the information side.

Optical information storage media in which the substrate material according to the invention in the form of foils, for example to cover the information layer in DVR (Direct Video Recording) or as a substrate of multilayer systems (if appropriate with embossed information) are also part of the invention.

The following examples are intended to illustrate the invention without, however, restricting it.

example 1

toluene

acidic ion exchanger

30 g (0.27 mol) of resorcinol and 23.5 g (0.405 mol) of acetone are dissolved in 300 ml of dry toluene. 50 g of anhydrous SC 104 ion exchanger (Bayer AG) are added as catalyst. The product is condensed by refluxing for 5.5 hours. After the end of the reaction, the ion exchanger is separated off and washed with toluene. The toluene fractions are combined and evaporated to dryness. After drying in vacuo at 50 ° C., 33.3 g of crude product are obtained, which is further purified by column chromatography.

A white solid is obtained with the following analytical data:

Melting point: 200 ° C

GC-MS: as TMS mass 484 (M = 340)

HPLC-MS: M = 340

Η NMR (400 MHz, D ₆ -DMSO, room temperature, TMS): 5 = 1.21-1.47 (d,

12H; CH ₃ ); 1.92-2.06 (dd, 4H; -CH ₂ -); 5.96 (s, 2H; Ar-H); 6.35-6.37 (d, 2H;

Ar-H); 7.12-7.17 (d, 2H; Ar-H); 9.02 (s, 2H; Ar-OH) Production of polyester polycarbonates from the diphenol from Example 1 and dimer fatty acid Pripol 1009.

A. 10% by weight Pripol 1009 The hydrogenated fatty acid used (Pripol 1009 from Uniqema). has the following

Specifications: iodine number <10, monomer content <0.1%, trimer content <1%.

0.42 g of phosgene is passed into a mixture of 1.22 g of Pripol 1009, 0.169 g, NaOH, 87.6 g of water and 175.1 ml of methylene chloride at room temperature. Allow to stir briefly. A mixture of 10.21 g of diphenol from Example 1, 0.09 g of tert-butylphenol, 2.64 g of NaOH, 87.6 g of water and 0.04 ml of N-ethylpiperidine is then added from a storage vessel. For condensation, 5.93 g of phosgene are introduced, the pH being kept in the range from 12.5 to 12.8 by occasional addition of sodium hydroxide solution.

After stirring for 30 minutes, the mixture is acidified with dilute phosphoric acid and then washed with distilled water until free of electrolytes. The organic phase is separated off and concentrated on a rotary evaporator. The product is precipitated by introduction into methanol, isolated by filtration and dried in a water jet vacuum.

Yield: 10.14 g of white polymer glass transition temperature (DSC, 2nd heating): 160.8 ° C molecular weight (BPA-PC calibration): Mw 10340 g / mol

B. 13 weight percent Pripol 1009

In an analogous manner, a polyester polycarbonate was produced from the diphenol from Example 1 and Pripol 1009 with 13% by weight Pripol 1009. To isolate the polymer, the organic phase was evaporated to dryness (no precipitation). Molecular weight (BPA-PC calibration): Mw 43 860 g / mol glass temperature (DSC, 2nd heating): 137.8 ° C water content: 0.32%

0.31% (1st repetition) 0.32% (2nd repetition) 0.29% (3rd repetition)

Examples of substituted spirochromanes according to the invention

Example 2:

toluene

acidic ion exchanger

10 g (0.09 mol) of resorcinol and 10.64 g (0.045 mol) of trans, trans-1,5-diphenyl-1,4-pentadien-3-one (from Aldrich) are dissolved in 150 ml of dry toluene. 25 g of anhydrous SC 104 ion exchanger (Bayer AG) are added as catalyst. The product is condensed by refluxing for 6 hours. After the end of the reaction, the ion exchanger is separated off and washed with toluene. The toluene fractions are combined and evaporated to dryness. After drying in vacuo at 50 ° C., 17.4 g of crude product are obtained, which is further purified by column chromatography. A yellowish solid is obtained with the following analytical data:

GC-MS: as TMS mass 580 (M = 436, ice, trans)

Example 3;

toluene

acidic ion exchanger

30 g (0.27 mol) of resorcinol and 29.2 g (0.405 mol) of methyl ethyl ketone (MEK) are dissolved in 300 ml of dry toluene. 50 g of anhydrous Kl 221 ion exchanger (Bayer AG) are added as catalyst. The product is condensed by refluxing for 6 hours. After the end of the reaction, the ion exchanger is separated off and washed with toluene. The toluene fractions are combined and evaporated to dryness. After drying in vacuo at 50 ° C., 50.4 g of crude product are obtained, which is further purified by column chromatography.

A white solid is obtained with the following analytical data:

GC-MS: as TMS mass 526 (M = 382, stereoisomers) HPLC-MS: M = 382

Example 4:

toluene acidic ion exchanger

52.45 g (0.27 mol) of 4-hexylresorcinol and 23.5 g (0.405 mol) of acetone are dissolved in 300 ml of dry toluene. 50 g of anhydrous Kl 221 ion exchanger (Bayer AG) are added as catalyst. The product is condensed by refluxing for 6 hours. After the end of the reaction, the ion exchanger is separated off and washed with toluene. The toluene fractions are combined and evaporated to dryness. After drying in vacuo at 50 ° C., 61.6 g of crude product are obtained, which is further purified by column chromatography.

A white solid is obtained with the following analytical data: GC-MS: as TMS mass 652 (M = 508)

Example 5:

toluene

acidic ion exchanger

30 g (0.27 mol) of resorcinol and 46.25 g (0.405 mol) of 5-methyl-2-hexanone are dissolved in 300 ml of dry toluene. 50 g of anhydrous ion exchanger K1221 (from Bayer AG) are added as catalyst. The product is condensed by refluxing for 6 hours. After the end of the reaction, the ion exchanger is separated off and washed with toluene. The toluene fractions are combined and evaporated to dryness. After drying in vacuo at 50 ° C., 63.4 g of crude product (still contains toluene) are obtained, which is further purified by column chromatography.

A yellow-white solid is obtained with the following analytical data: HPLC-MS: M = 508

Example 6:

toluene

acidic ion exchanger

37.31 g (0.27 mol) of 4-ethylresorcinol and 23.5 g (0.405 mol) of acetone are dissolved in 300 ml of dry toluene. 50 g of anhydrous SC 104 ion exchanger (Bayer AG) are added as catalyst. The condensation to the product takes place by refluxing for 2 days. After the end of the reaction, the ion exchanger is separated off and washed with toluene. The precipitate is dried in vacuo at 50 ° C. 3.35 g of product are obtained, which did not have to be further purified by column chromatography.

A light beige solid is obtained with the following analytical data: GC-MS: as TMS mass 540 (M = 396) - HPLC-MS: M = 396

1H-NMR (400 MHz, D ₆ -DMSO, room temperature, TMS): 5 = 1.07-1.11 (t, 6H; CH ₂ -CH ₃ ); 1.22-1.46 (d, 12H, CH _3); 1.85-2.03 (dd, 4H; -CH ₂ -); 2.42-2.5 (q, 4H, -CH ₂ -CH ₃ ); 6.0 (s, 2H; Ar-H); 7.0 (s, 2H; Ar-H); 8.86 (s, 2H; Ar-OH)

Example 7:

acidic ion exchanger

30 g (0.27 mol) of resorcinol and 18.66 g (0.135 mol) of phoron (from Aldrich) acetone are dissolved in 300 ml of dry toluene. 50 g of anhydrous SC 104 ion exchanger (Bayer AG) are added as catalyst. The product is condensed by refluxing for 8 hours with water separation. After the end of the reaction, the ion exchanger is separated off and washed with toluene. The precipitate is dried in vacuo at 50 ° C. 40.1 g of crude product (still contains toluene) are obtained, which is further purified by column chromatography.

A white solid is obtained with the following analytical data:

GC-MS: as TMS mass 484 (M = 340) HPLC-MS: M = 340 NMR characterization see. also example 1

Claims

claims

Polyester carbonates, characterized in that in addition to the usual carbonic acid derivatives, dicarboxylic acids of the formula (I)

HOOC-T-COOH (I)

where T is a branched or linear, saturated or unsaturated alkyl, arylalkyl or cycloalkyl part of 8-40 carbons, and, at least in part in addition to the usual diphenols, special diphenols of the formula (Ha) and / or (Hb)

(Ha) (Hb)

in the

Rj to R ₇ independently of one another, each represent hydrogen, halogen, a C ₁ to C ₂ alkyl radical, a C ₆ to C ₉ aryl, a C ₇ to C ₁₂ aralkyl, are used as monomers.

Polyester carbonates according to claim 1, characterized in that only the compounds of the formulas Ha and Hb are used as diphenol component.

3. Diphenols of the formula (Ha) and / or (Hb)

(Ha) (Hb)

in the

R _l to R ₇ independently of one another, each represent hydrogen, halogen, a Ci to C ₂ alkyl radical, a C ₆ to C] ₉ aryl, a C ₇ to ₂ aralkyl, with the exception of the compounds in which in formula Ha R ¹ to R ⁵ are hydrogen and in formula Hb R ⁶ and R ⁷ are simultaneously methyl groups.

Polyesteφolycarbonate according to claim 1, characterized in that the average molecular weight M _{w is} 7,000 to 40,000.

5. molded body containing a Polyesteφolycarbonate according to claim 1, in particular optical lenses, plates and films.

6. Machine-readable data carrier, characterized in that it is on a

Substrate made of a Polyesteφolycarbonate according to claim 1.

A process for the preparation of Polyesteφolycarbonaten according to claim 1, by one of the conventional processes for the preparation of polycarbonates, characterized in that diphenols of the formulas Ha and / or Hb and dicarboxylic acids of the formula I are reacted with carbonic acid derivatives.

8. Use of the compounds according to claim 2 for the preparation of Polyesteφolycarbonaten and polycarbonates.

9. A process for the preparation of the compounds according to claim 3 by acidic condensation of ketones or phorones with substituted or unsubstituted resorcinols.