Claims
- 1. A polymer blend comprising
- (a) a block copolymer comprising
- (i) a polystyrene block and
- (ii) a polydiene block or a hydrogenated polydiene block, said polydiene block or hydrogenated polydiene block containing an average of one or more carboxyl groups; and
- (b) a polymer comprising a polymerization reaction product of two or more mono-ethylenically unsaturated monomers in which:
- (i) at least one of the monomers is an acrylic or methacrylic acid ester of a non-tertiary alcohol having 1 to 14 carbon atoms, inclusive, and
- (ii) at least one of the monomers is a nitrogen-containing monomer selected from the group consisting of an
- N-vinyllactam and an N,N-dialkylacrylamide.
- 2. The blend of claim 1 wherein a homopolymer of said ester has a T.sub.g less than 20.degree. C.
- 3. The blend of claim 1 wherein said non-tertiary alcohol comprises methanol, ethanol, 1-propanol, 2-propanol, 1-butanol, 1-pentanol, 2-pentanol, 3-pentanol, 2-methyl-1-butanol, 1-methyl-1-butanol, 1-methyl-1-pentanol, 2-methyl-1-pentanol, 3-methyl-1-pentanol, 2-ethyl-1-butanol, 3,5,5-trimethyl-1-hexanol, 3-heptanol, 2-octanol, 1-decanol, or 1-dodecanol.
- 4. The blend of claim 1 wherein said ester comprises iso-octyl acrylate.
- 5. The blend of claim 1 wherein said polydiene block or hydrogenated polydiene block is selected from the group consisting of butadiene, isoprene, ethylene/butylene, and ethylene/propylene.
- 6. The blend of claim 1 wherein said modified block copolymer comprises a maleated styrene-ethylene/butylene-styrene block copolymer.
- 7. The blend of claim 1 comprising a blend of maleated styrene-ethylene/butylene-styrene block copolymer and iso-octyl acrylate/N-vinylcaprolactam polymer.
- 8. The blend of claim 1 wherein said blend is in the form of an adhesive, an ink, a paint, or a primer.
- 9. The blend of claim 8 wherein said blend is in the form of a pressure sensitive adhesive.
- 10. The blend of claim 1 wherein the ratio of said modified block copolymer to said polymer by weight ranges from about 95:5 to about 5:95.
- 11. The blend of claim 1 wherein the ratio of said modified block copolymer to said polymer by weight ranges from about 75:25 to about 25:75.
- 12. The blend of claim 1 wherein the amount of said nitrogen-containing monomer in said polymer ranges from about 5 to about 40 parts by weight based upon 100 parts by weight of polymer.
- 13. A method of preparing a polymer blend comprising physically blending:
- (a) a block copolymer comprising
- (i) a polystyrene block and
- (ii) a polydiene block or a hydrogenated polydiene block, said polydiene block or hydrogenated polydiene block containing an average of one or more carboxyl groups; and
- (b) a polymer comprising a polymerization reaction product of two or more mono-ethylenically unsaturated monomers in which:
- (i) at least one of the monomers is an acrylic or methacrylic acid ester of a non-tertiary alcohol having 1 to 14 carbon atoms, inclusive, and
- (ii) at least one of the monomers is a nitrogen-containing monomer selected from the group consisting of an N-vinyllactam and an N,N-dialkylacrylamide.
- 14. A blend comprising a maleated styrene-ethylene/butylene styrene block copolymer and an iso-octyl acrylate/N-vinylcaprolactam/acrylic acid polymer.
Parent Case Info
This is a file wrapper continuation of U.S. Ser. No. 08/361,058, filed Dec. 21, 1994, now abandoned, which is a continuation-in-part of U.S. Ser. No. 08/182,573, filed Jan. 14, 1994, now abandoned.
US Referenced Citations (11)
Foreign Referenced Citations (3)
Number |
Date |
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0 044 166 |
Jan 1982 |
EPX |
0 238 863 |
Sep 1987 |
EPX |
2 053 238 |
Feb 1981 |
GBX |
Continuations (1)
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Date |
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Parent |
361058 |
Dec 1994 |
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Continuation in Parts (1)
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Number |
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182573 |
Jan 1994 |
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