GB787760A - Improvements in the manufacture of polyester resins - Google Patents

Improvements in the manufacture of polyester resins

Info

Publication number
GB787760A
GB787760A GB18590/55A GB1859055A GB787760A GB 787760 A GB787760 A GB 787760A GB 18590/55 A GB18590/55 A GB 18590/55A GB 1859055 A GB1859055 A GB 1859055A GB 787760 A GB787760 A GB 787760A
Authority
GB
United Kingdom
Prior art keywords
acid
pentaerythritol
glycol
diethylene glycol
adipic
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
GB18590/55A
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.)
Hudson Foam Plastics Corp
Original Assignee
Hudson Foam Plastics 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
Priority claimed from US442195A external-priority patent/US2980650A/en
Application filed by Hudson Foam Plastics Corp filed Critical Hudson Foam Plastics Corp
Publication of GB787760A publication Critical patent/GB787760A/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

Landscapes

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

Abstract

A polyester, in the form of a viscous liquid, is the reaction product of (a) a straight chain dibasic acid having two to eight carbon atoms and up to two ether oxygen atoms between the carboxyl groups; (b) a polyethylene glycol of formula HO(CH2CH2O)nH, where n is greater than 1; and (3) an aliphatic polyhydroxy compound containing more than two hydroxyl groups and in an amount between 0.03 and 0.2 mol. per mol. of glycol. Preferably the hydroxyl number of the polyester is up to 200 (preferably 30-90) and the acid number is up to 50 (preferably 0-10). The resin may be made by heating the reactants (a), (b) and (c) at 200-250 DEG C. first at atmospheric pressure and then under vacuum or by heating the hydroxylic components with an aliphatic ester of the dibasic acid. The polyesters may be cross-linked by heating with a dibasic acid or by reacting at room temperature with a dialdehyde, a divinyl ether, a bifunctional unsaturated carbonyl compound, a bis-epoxide or a polyisocyanate. Examples disclose polyesters obtained by reacting (1)-(3) adipic acid, diethylene glycol and pentaerythritol, trimethylol propane or sorbitol. (4) Sebacic acid, triethylene glycol and pentaerythritol. (5) Succinic anhydride, diethylene glycol and pentaerythritol. (6) Azelaic acid, polyethylene glycol (M.W. 400) and pentaerythritol. (7) Succinic anhydride, triethylene glycol and triethanolamine. (8) Adipic acid, triethylene glycol and pentaerythritol. (9) Diglycolic acid, triethylene glycol and pentaerythritol. (10) Glutaric acid, diethylene glycol and pentaerythritol. (11) Ethylene bis (glycolic acid) diethylene glycol and trimethylolethane. (12)-(14) Adipic acid, diethylene glycol and trimethylol ethane, glycerol or a polyol having the formula: <FORM:0787760/IV (a)/1> (15) Dimethyl adipate, diethylene glycol and glycerol in presence of lead monoxide as catalyst. In addition to the acids mentioned a mixture of acids may be used (e.g. adipic and diglycolic or adipic and sebacic). The resins are compatible with polyvinyl alcohol.
GB18590/55A 1954-07-07 1955-06-28 Improvements in the manufacture of polyester resins Expired GB787760A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US787760XA 1954-07-07 1954-07-07
US1134075XA 1954-07-08 1954-07-08
US442195A US2980650A (en) 1954-07-08 1954-07-08 Preparing polymers under vacuum

Publications (1)

Publication Number Publication Date
GB787760A true GB787760A (en) 1957-12-18

Family

ID=27373349

Family Applications (1)

Application Number Title Priority Date Filing Date
GB18590/55A Expired GB787760A (en) 1954-07-07 1955-06-28 Improvements in the manufacture of polyester resins

Country Status (2)

Country Link
FR (1) FR1134075A (en)
GB (1) GB787760A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2167455A1 (en) * 1995-01-19 1996-07-20 Kevin Cooper Absorbable polyalkylene diglycolates
US5688900A (en) * 1995-01-19 1997-11-18 Ethicon, Inc. Absorbable polyalkylene diglycolates

Also Published As

Publication number Publication date
FR1134075A (en) 1957-04-05

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