GB826675A - Improvements in polyesters - Google Patents

Improvements in polyesters

Info

Publication number
GB826675A
GB826675A GB8111/56A GB811156A GB826675A GB 826675 A GB826675 A GB 826675A GB 8111/56 A GB8111/56 A GB 8111/56A GB 811156 A GB811156 A GB 811156A GB 826675 A GB826675 A GB 826675A
Authority
GB
United Kingdom
Prior art keywords
polyester
adsorbent
reacting
glycol
specified
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
GB8111/56A
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.)
Goodrich Corp
Original Assignee
BF Goodrich Corp
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 BF Goodrich Corp filed Critical BF Goodrich Corp
Publication of GB826675A publication Critical patent/GB826675A/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
    • C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
    • C08G65/02—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
    • C08G65/32—Polymers modified by chemical after-treatment
    • 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
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • 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
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/08—Processes
    • C08G18/088—Removal of water or carbon dioxide from the reaction mixture or reaction components
    • C08G18/0885—Removal of water or carbon dioxide from the reaction mixture or reaction components using additives, e.g. absorbing agents
    • 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
    • C08G63/88—Post-polymerisation treatment
    • C08G63/90—Purification; Drying

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Polyurethanes Or Polyureas (AREA)
  • Polyesters Or Polycarbonates (AREA)

Abstract

Polysters or polysteramides with terminal hydroxyl, carboxyl and/or amine groups and preferably of molecular weight 500-5,000 have their reaction rates with polyisocyanates reduced by treating them prior to such reaction with an inorganic adsorbent. The polyester being treated may be in molten or solution form and treatment may be effected (a) by stirring the polyester with the adsorbent and then filtering (b) by passing the polyester through a fixed bed of the adsorbent; or (c) by a continuous method using a fluidized bed technique. Specified adsorbents are silica gel, silicic acid, activated alumina, activated charcoal or carbon, activated bleaching earths, dixie clay, bentonite, fuller's earth, finelydivided slate, talc or feldspar, a mixture of clay and diatomaceous earth, magnesium oxide and calcium carbonate. The polyesters are those prepared by reacting a polycarboxylic acid (preferably a dicarboxylic acid) with a polyhydroxy compound (preferably a glycol or a mixture thereof with a minor amount of a polyhydric alcohol). The polyesteramides are those prepared by reacting a glycol, an aliphatic dicarboxylic acid and an amino-alcohol or a diamine. Many polyester and polyesteramideforming reactants are specified. Examples describe treating of polyethylene adipate with an adsorbent and afterwards reacting it with p-phenylene diisocyanate.
GB8111/56A 1955-03-28 1956-03-15 Improvements in polyesters Expired GB826675A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US826675XA 1955-03-28 1955-03-28

Publications (1)

Publication Number Publication Date
GB826675A true GB826675A (en) 1960-01-20

Family

ID=22172633

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8111/56A Expired GB826675A (en) 1955-03-28 1956-03-15 Improvements in polyesters

Country Status (3)

Country Link
DE (1) DE1045643B (en)
FR (1) FR1148929A (en)
GB (1) GB826675A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL277805A (en) * 1961-07-21
US4306056A (en) * 1979-05-23 1981-12-15 Mitsubishi Gas Chemical Company, Inc. Process for producing an oligoester and producing unsaturated polyester resin by use thereof

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1581902A (en) * 1924-07-05 1926-04-20 Gen Electric Polyhydric alcohol-organic acid resinous condensation products
DE679710C (en) * 1935-11-09 1939-08-12 I G Farbenindustrie Akt Ges Process for the production of condensation products
DE831772C (en) * 1952-11-18 1952-02-18 Bayer Ag Process for the production of high molecular weight crosslinked plastics

Also Published As

Publication number Publication date
DE1045643B (en) 1958-12-04
FR1148929A (en) 1957-12-18

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