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GB1458341A - Belts - Google Patents

Belts

Info

Publication number
GB1458341A
GB1458341A GB1297575A GB1297575A GB1458341A GB 1458341 A GB1458341 A GB 1458341A GB 1297575 A GB1297575 A GB 1297575A GB 1297575 A GB1297575 A GB 1297575A GB 1458341 A GB1458341 A GB 1458341A
Authority
GB
United Kingdom
Prior art keywords
copolyetherester
molecular weight
ester units
elastomer
derived
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
Application number
GB1297575A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Publication of GB1458341A publication Critical patent/GB1458341A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
    • C08G63/66—Polyesters containing oxygen in the form of ether groups
    • C08G63/668—Polyesters containing oxygen in the form of ether groups derived from polycarboxylic acids and polyhydroxy compounds
    • C08G63/672—Dicarboxylic acids and dihydroxy compounds
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
    • F16G1/00—Driving-belts
    • F16G1/14—Driving-belts made of plastics

Landscapes

  • Chemical & Material Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Engineering & Computer Science (AREA)
  • Medicinal Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Polyesters Or Polycarbonates (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)

Abstract

1458341 Oriented copolyetherester film; moulded belts E I DU PONT DE NEMOURS & CO 27 March 1975 [28 March 1974] 12975/75 Headings B5A and B5B [Also in Division F2] A film of a copolyetherester comprising recurring long chain ester units and short chain ester units joined head-to-tail by ester linkages, the long chain ester units having the formula and the short chain units having the formula (where G is a divalent radical derived by removal of terminal hydroxy groups from a poly-(alkylene oxide) glycol having a molecular weight of 400-6000 and a carbon : oxygen ratio of 2À0 : 1 to 4À3 : 1; R is a divalent radical derived by removal of carboxylic groups from a dicarboxylic acid of molecular weight not greater than 300 and D is a divalent radical derived by removal of hydroxyl groups from a diol having a molecular weight not greater than 250, provided that the short chain ester units amount to 15-95% by weight of the copolyetherester, is orientated by (A) stretching the elastomer by at least 300% of its original length, (B) bringing the elastomer to 83‹ to 11‹ C below the melting point of the copolyetherester and (C) cooling said elastomer while stretched to a temperature below the temperature of step (B) by at least 56‹ C. The melting point of the copolyester is from 171‹ to 216‹ C. and the heat setting temperature is from 110‹ to 199‹C. The elongation at break for a given slab of copolyetherester is 30-200%. In a preferred copolyetherester R is a 1,4- phenylene group, G is derived from a poly- (tetramethylene oxide) glycol of molecular weight 600-200 and D is derived from 1,4- butanediol. A V-belt is fabricated by extruding the copolyetherester into a mould having a crosssection that is perpendicular to its long axis that is trapezoidal in shape and which is preheated to 149‹ C., cooling the mould to room temperature, stretching the moulded material to 400% its original length, exposing the stretched material while still under tension to hot air at 177‹ C. for 30 mins., and joining two cut ends of the moulded oriented material by fusion at 232- 88‹ C.
GB1297575A 1974-03-28 1975-03-27 Belts Expired GB1458341A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US45580374A 1974-03-28 1974-03-28

Publications (1)

Publication Number Publication Date
GB1458341A true GB1458341A (en) 1976-12-15

Family

ID=23810334

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1297575A Expired GB1458341A (en) 1974-03-28 1975-03-27 Belts

Country Status (6)

Country Link
JP (1) JPS5830139B2 (en)
CA (1) CA1195464A (en)
DE (1) DE2513736B2 (en)
FR (1) FR2265794B1 (en)
GB (1) GB1458341A (en)
IT (1) IT1034660B (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0041709A1 (en) * 1980-06-09 1981-12-16 E.I. Du Pont De Nemours And Company Energy absorbing belt-like member
US4322335A (en) 1979-09-21 1982-03-30 Imperial Chemical Industries Limited Fast crystallizing block copolyester composition
EP0107283A2 (en) 1982-08-12 1984-05-02 E.I. Du Pont De Nemours And Company Upholstery support material made of crossed strands of oriented thermoplastic elastomer
US4469739A (en) * 1983-01-21 1984-09-04 E. I. Du Pont De Nemours And Company Oriented woven furniture support material
US4469738A (en) * 1983-01-21 1984-09-04 E. I. Du Pont De Nemours And Company Oriented net furniture support material
US6060407A (en) * 1998-07-29 2000-05-09 Atlantech International, Inc. Advanced integrally formed load support systems

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK311575A (en) * 1974-07-22 1976-01-23 Dayco Corp ENDLESS DRIVE BELT AND METHOD FOR MANUFACTURING IT
JPS5824266B2 (en) * 1975-06-04 1983-05-20 東洋紡績株式会社 Manufacturing method of drive belt
JPS521258A (en) * 1975-06-23 1977-01-07 Toyobo Co Ltd Belt for driving
JPS5590740A (en) * 1978-12-26 1980-07-09 Toyobo Co Ltd Laminated belt and its preparation

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5133036Y2 (en) * 1971-04-06 1976-08-17

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4322335A (en) 1979-09-21 1982-03-30 Imperial Chemical Industries Limited Fast crystallizing block copolyester composition
EP0041709A1 (en) * 1980-06-09 1981-12-16 E.I. Du Pont De Nemours And Company Energy absorbing belt-like member
EP0107283A2 (en) 1982-08-12 1984-05-02 E.I. Du Pont De Nemours And Company Upholstery support material made of crossed strands of oriented thermoplastic elastomer
EP0107283A3 (en) * 1982-08-12 1986-03-26 E.I. Du Pont De Nemours And Company Upholstery support material made of crossed strands of oriented thermoplastic elastomer
US4469739A (en) * 1983-01-21 1984-09-04 E. I. Du Pont De Nemours And Company Oriented woven furniture support material
US4469738A (en) * 1983-01-21 1984-09-04 E. I. Du Pont De Nemours And Company Oriented net furniture support material
US6060407A (en) * 1998-07-29 2000-05-09 Atlantech International, Inc. Advanced integrally formed load support systems

Also Published As

Publication number Publication date
FR2265794A1 (en) 1975-10-24
DE2513736A1 (en) 1975-10-02
CA1195464A (en) 1985-10-22
IT1034660B (en) 1979-10-10
DE2513736B2 (en) 1979-04-26
FR2265794B1 (en) 1980-11-07
JPS5830139B2 (en) 1983-06-27
JPS50129857A (en) 1975-10-14

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee