Claims
- 1. A composition comprising a mixture of (1) from 5 to 95 percent by weight of a copolymer comprising from 55 to 85 percent by weight of vinylidene chloride, 5 to 35 percent by weight of an ethylenically unsaturated monomer and 0 to 20 percent by weight of an ethylenically unsaturated carboxylic acid, and (2) from 5 to 95 percent by weight of a polymeric carboxy-ester-lactone.
- 2. The composition of claim 1 wherein said ethylenically unsaturated monomer is methyl acrylate or acrylonitrile.
- 3. The composition of claim 1 wherein said ethylenically unsaturated carboxylic acid is acrylic acid or itaconic acid.
- 4. The composition of claim 1 wherein said copolymer comprises 55 to 85 percent by weight of vinylidene chloride, 5 to 35 percent by weight of acrylonitrile and 2 to 10 percent by weight of acrylic acid.
- 5. The composition of claim 1 wherein said polymeric carboxy-ester-lactone comprises the following recurring structural units: ##STR10## wherein: R is alkyl having 1 to 12 carbon atoms, aralkyl wherein said alkyl comprises 1 to 4 carbon atoms; and
- R.sub.1 and R.sub.2 are independently H or methyl.
- 6. The composition of claim 5 wherein R is n-butyl and R.sub.1 and R.sub.2 are H.
- 7. The composition of claim 5 additionally comprising the following recurring structural units: ##STR11## wherein n is an integer of from 1 to 5.
- 8. The composition of claim 5 wherein said polymeric carboxy-ester-lactone has 0.25 to 5.0 milliequivalents of acid per gram of said copolymer.
- 9. A composition comprising a mixture of (1) from 5 to 95 percent by weight of a copolymer comprising from 55 to 85 percent by weight of vinylidene chloride, 5 to 35 percent by weight of an ethylenically unsaturated monomer and 0 to 20 percent by weight of an ethylenically unsaturated carboxylic acid, and (2) from 5 to 95 percent by weight of a polymeric carboxy-ester-lactone, said mixture being dissolved in an organic solvent.
- 10. The composition of claim 9 wherein said copolymer comprises 55 to 85 percent by weight of vinylidene chloride, 5 to 35 percent by weight of acrylonitrile and 2 to 10 percent by weight of acrylic acid.
- 11. The composition of claim 9 wherein said polymeric carboxy-ester-lactone comprises the following recurring structural units: ##STR12## wherein: R is alkyl having 1 to 12 carbon atoms or aralkyl wherein said alkyl comprises 1 to 4 carbon atoms; and
- R.sub.1 and R.sub.2 are independently H or methyl.
- 12. The composition of claim 10 wherein the lactone additionally comprises the following units: ##STR13## wherein n is an integer of from 1 to 5.
- 13. A composition comprising a mixture of (1) 60 percent by weight of poly(acrylonitrile-co-vinylidene chloride-co-acrylic acid) having a weight ratio of 14/80/6, and (2) 40 percent by weight of the polymeric carboxy-ester-lactone produced by lactonization and esterification of poly(vinyl acetate-co-maleic anhydride) (1:1) with n-butanol and having 0.25 to 5.0 milliequivalents of acid per gram of said carboxy-ester-lactone, said mixture being dissolved in an organic solvent.
Parent Case Info
This is a division of application Ser. No. 948,062, filed Oct. 2, 1978 U.S. Pat. No. 4,229,516.
US Referenced Citations (3)
Non-Patent Literature Citations (1)
Entry |
Research Disclosure: "Neutralizing Materials in Photographic Elements", #12331, vol. 123, 7/1974, pp. 22-24. |
Divisions (1)
|
Number |
Date |
Country |
Parent |
948062 |
Oct 1978 |
|