Copolymers of polycaprolactone derivatives and ethylenically unsaturated monomers

• US 4,137,279 A
• Filed: 12/27/1977
• Issued: 01/30/1979
• Est. Priority Date: 12/27/1977
• Status: Expired due to Term

• Current Assignee: Union Carbide Corporation (Dow, Inc.)
• Original Assignee: Union Carbide Corporation (Dow, Inc.)
• Inventors: Smith, Oliver W., Koleske, Joseph V.
• Primary Examiner(s): De Benedictis, Sr., Thomas
• Application Number:
  US05/864,754
• Time in Patent Office: 399 Days
• Field of Search: 260/861, 260/873, 260/875, 260/830 R
• US Class Current: 525/411
• CPC Class Codes: C08G 63/06 derived from hydroxycarboxylic acids
• CPC Class Codes: C09D 167/06 Unsaturated polyesters having carbon-to-carbon unsaturation

Abstract

Mixtures of the unsaturated maleic anhydride modified adduct of a polycaprolactone polyol and an ethylenically unsaturated monomer are copolymerized. The resulting polymers are useful as coatings or in the production of films and shaped molded articles.

Claims

1. A polymer comprising (A) from 10 to 97 weight percent of the reaction product mixture of a polycaprolactone polyol and maleic anhydride and (B) from 3 to 90 weight percent of an ethylenically unsaturated monomer polymerized with (A);

wherein said reaction product mixture (A) is the adduct of a polycaprolactone polyol having at least two hydroxyl groups in the molecule, a hydroxyl number of from 4 to 600 and an average molecular weight of from 290 to 25,000 with from 0.1 to 1 anhydride equivalent per hydroxyl equivalent in said polyol initially charged.

2. A polymer as claimed in claim 1, comprising (A) from 15 to 90 weight percent of the reaction product mixture of a polycaprolactone polyol and maleic anhydride and (B) from 10 to 85 weight percent of an ethylenically unsaturated monomer polymerized with (A).

3. A polymer as claimed in claim 1, wherein said component (A) is the reaction product of a polycaprolactone polyol having from 2 to 6 hydroxyl groups and maleic anhydride.

4. A polymer as claimed in claim 1, wherein said component (A) is the reaction product of a polycaprolactone polyol having from 2 to 4 hydroxyl groups and maleic anhydride.

5. A polymer as claimed in claim 1, wherein said component (A) is the adduct of a polycaprolactone diol having an average molecular weight of 530 and an average hydroxyl number of 212 with maleic anhydride and said component (B) is styrene.

6. A polymer as claimed in claim 1, wherein said component (A) is the adduct of a polycaprolactone triol having an average hydroxyl number of 310 with maleic anhydride and said component (B) is styrene.

7. A polymer as claimed in claim 1, wherein said component (A) is the adduct of a polycaprolactone triol having an average molecular weight of 300 and an average hydroxyl number of 560 with maleic anhydride and said component (B) is styrene.

8. A polymer as claimed in claim 1, wherein said component (A) is the adduct of a polycaprolactone triol having an average molecular weight of 900 and an average hydroxyl number of 187 with maleic anhydride and said component (B) is styrene.

9. A polymer as claimed in claim 1, wherein said component (A) is the adduct of a polycaprolactone homopolymer having an average molecular weight of about 5,000 with maleic anhydride and said component (B) is styrene.

10. A polymer as claimed in claim 1, wherein said component (A) is the adduct of a polycaprolactone homopolymer having an average molecular weight of about 10,000 with maleic anhydride and said component (B) is styrene.

11. A polymer as claimed in claim 1, wherein said component (A) is the adduct of a polycaprolactone homopolymer having an average molecular weight of about 20,000 with maleic anhydride and said component (B) is styrene.

12. A polymer as claimed in claim 1, wherein said component (A) is the adduct of a polycaprolactone diol having an average molecular weight of 2,000 and an average hydroxyl number of 56 with maleic anhydride and said component (B) is styrene.

13. A polymer as claimed in claim 1, additionally containing from 25 to 200 weight percent of a crosslinking agent based on the weight of said adduct present.

14. A polymer as claimed in claim 13, wherein said crosslinker is a melamine.

15. A polymer as claimed in claim 14, wherein said crosslinker is hexamethoxymethylmelamine.

16. A polymer as claimed in claim 13, wherein said crosslinker is a 1,2-epoxide.

17. A polymer as claimed in claim 16, wherein said crosslinker is 3,4-epoxycyclohexylmethyl 3,4-epoxycyclohexanoate.