GB918958A - A process for the production of a thermoplastic powder, the major constituent of which is cellulose acetate - Google Patents
A process for the production of a thermoplastic powder, the major constituent of which is cellulose acetateInfo
- Publication number
- GB918958A GB918958A GB2729760A GB2729760A GB918958A GB 918958 A GB918958 A GB 918958A GB 2729760 A GB2729760 A GB 2729760A GB 2729760 A GB2729760 A GB 2729760A GB 918958 A GB918958 A GB 918958A
- Authority
- GB
- United Kingdom
- Prior art keywords
- powder
- phthalate
- temperature
- cellulose acetate
- plasticizer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000000843 powder Substances 0.000 title abstract 7
- 229920002301 cellulose acetate Polymers 0.000 title abstract 3
- 229920001169 thermoplastic Polymers 0.000 title abstract 2
- 239000004416 thermosoftening plastic Substances 0.000 title abstract 2
- 239000000470 constituent Substances 0.000 title 1
- FLKPEMZONWLCSK-UHFFFAOYSA-N diethyl phthalate Chemical compound CCOC(=O)C1=CC=CC=C1C(=O)OCC FLKPEMZONWLCSK-UHFFFAOYSA-N 0.000 abstract 4
- 239000000203 mixture Substances 0.000 abstract 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 abstract 3
- 239000004014 plasticizer Substances 0.000 abstract 3
- HSUIVCLOAAJSRE-UHFFFAOYSA-N bis(2-methoxyethyl) benzene-1,2-dicarboxylate Chemical compound COCCOC(=O)C1=CC=CC=C1C(=O)OCCOC HSUIVCLOAAJSRE-UHFFFAOYSA-N 0.000 abstract 2
- 239000000047 product Substances 0.000 abstract 2
- XZZNDPSIHUTMOC-UHFFFAOYSA-N triphenyl phosphate Chemical compound C=1C=CC=CC=1OP(OC=1C=CC=CC=1)(=O)OC1=CC=CC=C1 XZZNDPSIHUTMOC-UHFFFAOYSA-N 0.000 abstract 2
- NIQCNGHVCWTJSM-UHFFFAOYSA-N Dimethyl phthalate Chemical compound COC(=O)C1=CC=CC=C1C(=O)OC NIQCNGHVCWTJSM-UHFFFAOYSA-N 0.000 abstract 1
- 239000004150 EU approved colour Substances 0.000 abstract 1
- 125000000218 acetic acid group Chemical group C(C)(=O)* 0.000 abstract 1
- 230000032683 aging Effects 0.000 abstract 1
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 abstract 1
- 239000012467 final product Substances 0.000 abstract 1
- TWNIBLMWSKIRAT-VFUOTHLCSA-N levoglucosan Chemical group O[C@@H]1[C@@H](O)[C@H](O)[C@H]2CO[C@@H]1O2 TWNIBLMWSKIRAT-VFUOTHLCSA-N 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 238000010309 melting process Methods 0.000 abstract 1
- 229940006093 opthalmologic coloring agent diagnostic Drugs 0.000 abstract 1
- 230000000087 stabilizing effect Effects 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D101/00—Coating compositions based on cellulose, modified cellulose, or cellulose derivatives
- C09D101/08—Cellulose derivatives
- C09D101/10—Esters of organic acids
- C09D101/12—Cellulose acetate
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L1/00—Compositions of cellulose, modified cellulose or cellulose derivatives
- C08L1/08—Cellulose derivatives
- C08L1/10—Esters of organic acids, i.e. acylates
- C08L1/12—Cellulose acetate
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Medicinal Preparation (AREA)
- Developing Agents For Electrophotography (AREA)
- Laminated Bodies (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Thermoplastic powders having an apparent density of 550-750 g per litre are produced by mixing at a temperature not exceeding 30 DEG C. a major proportion of a cellulose acetate powder having an apparent density of 400-600 g. per litre and a moisture content of 0,3-0,8%, and substantially all of which passes a screen having square apertures the sides of which are 0,4 mm. in length, with a plasticizer which is a liquid at the temperature of mixing, does not dissolve the powder at normal atmospheric temperature and does not cause the powder to form crumbs or gelatinize, and thereafter heat-ageing the powder, preferably at 50 DEG -90 DEG C. for 6-24 hours. The cellulose acetate used preferably has an acetyl value (as acetic acid) of 52-58% and a DP of 150-250 units of anhydroglucose. The proportion of plasticizer in the final product is preferably 35-45%, particularly 39%. The plasticizer may be ethyl phthalate, methylglycol-phthalate or mixtures of these, mixtures of methyl-phthalate and triphenylphosphate containing not less than 40% by weight of the latter or mixtures of ethyl-phthalate and/or methylglycol-phthalate with triphenylphosphate containing not more than 20% by weight of the latter. The preferred mixing temperature is 5 DEG -15 DEG C. There may be incorporated in the mixture stabilizing, delustring or colouring agents in proportions too small to effect the granularmetric distribution of the product. The powder is preferably disposed during heat ageing in a layer having a thickness of not more than 3 cm. The product is suitable for the coating of articles by the melting process.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT4139460 | 1960-03-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB918958A true GB918958A (en) | 1963-02-20 |
Family
ID=11250257
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2729760A Expired GB918958A (en) | 1960-03-01 | 1960-08-05 | A process for the production of a thermoplastic powder, the major constituent of which is cellulose acetate |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE590429A (en) |
| DE (1) | DE1470943A1 (en) |
| GB (1) | GB918958A (en) |
-
1960
- 1960-05-03 DE DE19601470943 patent/DE1470943A1/en active Pending
- 1960-05-03 BE BE590429A patent/BE590429A/en unknown
- 1960-08-05 GB GB2729760A patent/GB918958A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| BE590429A (en) | 1960-09-01 |
| DE1470943A1 (en) | 1969-06-12 |
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