Polymers of vinyl acetate plasticized with low molecular weight polyesters

• US 4,085,082 A
• Filed: 08/07/1975
• Issued: 04/18/1978
• Est. Priority Date: 10/27/1970
• Status: Expired due to Term

• Current Assignee: Ciba-Geigy AG (Novartis Ag)
• Original Assignee: Ciba-Geigy AG (Novartis Ag)
• Inventors: Lamb, Frank, Cooper, Hugh Melvin, Combey, Malcolm
• Primary Examiner(s): Lieberman, Allan
• Application Number:
  US05/602,889
• Time in Patent Office: 985 Days
• Field of Search: 260/31.6, 260/485 G
• US Class Current: 524/311
• CPC Class Codes: C08G 63/20 Polyesters having been prepared in the presence of compounds having one reactive group or more than two reactive groups
• CPC Class Codes: C08G 63/672 Dicarboxylic acids and dihydroxy compounds
• CPC Class Codes: C08L 2666/14 Macromolecular compounds according to C08L59/00 - C08L87/00; Derivatives thereof
• CPC Class Codes: C08L 31/00 Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an acyloxy radical of a saturated carboxylic acid, of carbonic acid or of a haloformic acid of hydrolysed polymers C08L29/00; Compositions of derivatives of such polymers
• CPC Class Codes: C08L 31/04 Homopolymers or copolymers of vinyl acetate
• CPC Class Codes: C08L 67/02 Polyesters derived from dicarboxylic acids and dihydroxy compounds C08L67/06 takes precedence

Abstract

Polyesters derived from the reaction of a dibasic acid, ethylene glycol and an aliphatic alcohol are used as plasticizers for vinyl acetate polymers.

Claims

1. A composition comprising a vinyl acetate polymer or copolymer of between 55% and 100% of vinyl acetate with one or more ethylenically unsaturated non-halogenated comonomers and from 10 to 100% by weight based on the weight of the polymer of a polyester having a molecular weight of from 350 to 1500 derived from the reaction of glutaric acid or anhydride or a mixture of aliphatic dibasic acids of anhydrides selected from succinic, glutaric or adipic acid or anhydride with ethylene glycol and an aliphatic alcohol containing from 3 to 6 carbon atoms;

wherein the alcohol and glycol components are reacted with the dibasic acids or anhydrides in the theoretical amounts needed to effect the reaction with the proviso that the glycol may be reacted with the dibasic acids or anhydrides in amounts ranging from 0-10 mol% below the theoretical amount necessary to effect the reaction to up to 20% in excess of the theoretical amount necessary to effect the reaction to up to 20% in excess of the theoretical amount and the alcohol may be reacted with the dibasic acids or anhydrides in amounts ranging from 0 to 50 mol% below the theoretical amount to up to 20 mol% in excess of the theoretical amount needed to produce the final product.

2. A composition according to claim 1 in which the acid from which the polyester is derived is a mixture of succinic, glutaric and adipic acids having the approximate composition by weight of 21% succinic, 45% glutaric and 34% adipic acids.

3. A composition according to claim 1 in which the alcohol from which the polyester is derived is n-butyl alcohol or iso-butyl alcohol.

4. A composition according to claim 1 in which the polyester is derived from 4 moles of a mixture of adipic, glutaric and succinic acids having the approximate composition by weight of 21% succinic, 45% glutaric and 34% adipic acids, 3.59 moles of ethylene glycol and 1.28 moles of iso-butanol.

5. A composition according to claim 1 in which the amount of polyester is from 40 to 80% by weight based on the weight of vinyl acetate polymer.