Claims
- 1. An adhesive composition comprising a graft copolymer of:
- (a) an elastomeric ethylenically unsaturated polyester copolymer including recurring ester units along the chain thereof, grafted with
- (b) a grafting monomer consisting essentially of an acid or anhydride selected from the group consisting of crotonic acid and ethylenically unsaturated dicarboxylic acids and anhydrides, said grafting monomer comprising up to about 10 wt. % of said graft copolymer.
- 2. The adhesive composition of claim 1 wherein said grafting monomer comprises between about 0.1 and about 10 wt. % of said graft copolymer.
- 3. The adhesive composition of claim 1 wherein said grafting monomer is a dicarboxylic acid or anhydride selected from the group consisting of maleic acid, fumaric acid, itaconic acid, citraconic acid, maleic anhydride, itaconic anhydride, citraconic anhydride and tetrahydrophthalic anhydride.
- 4. The adhesive composition of claim 1 wherein said grafting monomer is maleic anhydride.
- 5. An adhesive composition of claim 1 wherein said polyester copolymer (a) is a polycondensation product of terephthalic acid, butanediol, butenediol and polytetramethylene glycol.
- 6. The adhesive composition of claim 5 wherein said polyester copolymer (a) has a Shore D hardness of from about 40 to about 72, an MFR of about 10 to 20 g/10 min. as measured by ASTM D-1238, said grafting monomer (b) is maleic anhydride, and said maleic anhydride is present in said composition in grafted form in a concentration of from about 0.1 to about 200 millimoles per 100 grams of said composition.
- 7. An adhesive composition comprising a graft copolymer of:
- (a) an elastomeric ethylenically unsaturated polyester copolymer including recurring ester units along the chain thereof, grafted with
- (b) a grafting monomer consisting essentially of an acid or anhydride selected from the group consisting of crotonic acid, maleic acid, fumaric acid, itaconic acid, citraconic acid, and ethylenically unsaturated anhydrides said grafting monomer comprising up to about 10 wt. % of said graft copolymer.
- 8. The adhesive composition of claim 7 wherein said grafting monomer comprises between about 0.1 and about 10 wt. % of said graft copolymer.
- 9. The adhesive composition of claim 7 wherein said grafting monomer comprises between about 0.1 and about 4.4 wt. % of said graft copolymer.
- 10. The adhesive composition of claim 7 wherein said anhydride is selected from the group consisting of maleic anhydride, itaconic anhydride, citraconic anhydride, and tetrahydrophthalic anhydride.
- 11. The adhesive composition of claim 7 wherein said grafting monomer is maleic anhydride.
- 12. An adhesive composition of claim 7 wherein said polyester copolymer (a) is a polycondensation product of terephthalic acid, butanediol, butenediol and polytetramethylene glycol.
- 13. The adhesive composition of claim 12 wherein said polyester copolymer (a) has a Shore D hardness of from about 40 to about 72, an MFR of about 10 to 20 g/10 min. as measured by ASTM D-1238, said grafting monomer (b) is maleic anhydride, and said maleic anhydride is present in said composition in grafted form in a concentration of from about 0.1 to about 200 millimoles per 100 grams of said composition.
- 14. An adhesive composition comprising a graft copolymer of:
- (a) an elastomeric ethylenically unsaturated polyester copolymer including recurring ester units along the chain thereof, grafted with
- (b) a grafting monomer selected from the group consisting of maleic anhydride, itaconic anhydride, citraconic anhydride, and tetrahydrophthalic anhydride, said grafting monomer comprising up to about 10 wt. % of said graft copolymer.
- 15. The adhesive composition of claim 14 wherein said grafting monomer comprises between about 0.1 and about 10 wt. % of said graft copolymer.
- 16. The adhesive composition of claim 14 wherein said grafting monomer comprises between about 0.1 and about 4.4 wt. % of said graft copolymer.
- 17. The adhesive composition of claim 14 wherein said grafting monomer is maleic anhydride.
- 18. An adhesive composition of claim 14 wherein said polyester copolymer (a) is a polycondensation product of terephthalic acid, butanediol, butenediol and polytetramethylene glycol.
- 19. The adhesive composition of claim 18 wherein said polyester copolymer (a) has a Shore D hardness of from about 40 to about 72, an MFR of about 10 to 20 g/10 min. as measured by ASTM D-138, said grafting monomer (b) is maleic anhydride, and said maleic anhydride is present in said composition in grafted form in a concentration of from about 0.1 to 200 millimoles per 100 grams of said composition.
Parent Case Info
This is a continuation of U.S. application Ser. No. 07/559,716, filed Jul. 30, 1990, now abandoned.
US Referenced Citations (25)
Continuations (1)
|
Number |
Date |
Country |
Parent |
559716 |
Jul 1990 |
|