Claims
- 1. An adhesive comprising an aqueous emulsion of a copolymer containing an ethylene unit (A), a vinyl ester unit (B), an acetoacetyl group-containing copolymerizable monomer unit (C) and a polyvinyl alcohol as a protective colloid (D) in a weight ratio of (A)/(B)/(C)/(D)=8.7 to 70/100/0.1 to 10/1 to 10, wherein said copolymer contains a toluene-insoluble content in an amount of from 52 to 70% by weight.
- 2. The adhesive of claim 1, wherein the vinyl ester unit (B) is at least one member selected from the group consisting of vinyl acetate, vinyl propionate, vinyl pivalate, vinyl isononanate, and vinyl versatate.
- 3. The adhesive of claim 1, wherein the vinyl ester unit (B) is vinyl acetate.
- 4. The adhesive of claim 1, wherein the acetoacetyl group-containing polymerizable monomer unit (C) is at least one member selected from the group consisting of acetoacetic acid vinyl ester, acetoacetic acid allyl ester, diacetoacetic acid allyl ester, acetoacetoxyethyl methacrylate, acetoacetoxyethyl acrylate, acetoacetoxypropyl methacrylate, acetoacetoxypropyl acrylate, and (2-acetylacetoxypropyl) allyl ether.
- 5. The adhesive of claim 1, wherein the weight ratio of the ethylene unit (A), the vinyl ester unit (B), and the acetoacetyl group-containing copolymerizable monomer unit (C) is (A)/(B)/(C)=8.7 to 55/100/0.5 to 5.
- 6. The adhesive of claim 1, wherein the aqueous emulsion contains a solid content in an amount of from 40 to 70% by weight.
- 7. The adhesive of claim 6, wherein the content of the solid content is from 50 to 65% by weight.
- 8. The adhesive according to claim 1, wherein said ethylene unit (A) is present in an amount of 8.7 to 47.1 parts by weight per 100 parts by weight of said vinyl ester unit (B).
Priority Claims (1)
Number |
Date |
Country |
Kind |
4-090768 |
Apr 1992 |
JPX |
|
Parent Case Info
This is a Continuation of application Ser. No. 08/044,495 filed Apr. 9, 1993 now abandoned.
US Referenced Citations (4)
Continuations (1)
|
Number |
Date |
Country |
Parent |
44495 |
Apr 1993 |
|