End Use Applications Prepared From Certain Block Copolymers
First Claim
1. A contact adhesive composition comprising a hybrid block copolymer, a resin and a solvent, wherein said hybrid block copolymer comprises the reaction product of (a) a base block copolymer having at least one block of a polymerized conjugated diene or a polymerized alkenyl aromatic and at least one end block comprising six membered anhydride ring groups and acid groups, and (b) a reactive monomer or reactive resin or metal derivative that will react with the anhydride and/or acid groups of said end block.
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Accused Products
Abstract
The present invention relates to various end use applications prepared from certain block copolymers. The block copolymers include one or more A or A′ blocks or B blocks plus one or more terminal M blocks. Each A and A′ is a block or segment comprising predominantly a polymerized alkenyl aromatic compound, each B is a block or segment comprising predominantly a polymerized conjugated alkadiene, and each M is a six membered anhydride ring and/or acid group. The anhydride rings are prepared by thermally decomposing adjacent units of (1-methyl-1-alkyl)alkyl acrylic esters such as t-butylmethylacrylate. A wide variety of polymers are disclosed having the stable anhydride rings in the polymer backbone. The invention relates specifically to various end uses prepared from the reaction product of such block copolymers with various reactive resins, reactive monomers and metal derivatives.
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Citations
25 Claims
- 1. A contact adhesive composition comprising a hybrid block copolymer, a resin and a solvent, wherein said hybrid block copolymer comprises the reaction product of (a) a base block copolymer having at least one block of a polymerized conjugated diene or a polymerized alkenyl aromatic and at least one end block comprising six membered anhydride ring groups and acid groups, and (b) a reactive monomer or reactive resin or metal derivative that will react with the anhydride and/or acid groups of said end block.
- 6. An adhesive composition comprising 100 parts by weight of at least one hybrid block copolymer, 25 to 300 parts by weight of at least one tackifying resin, 0 to 200 parts by weight of an extender oil, wherein said hybrid block copolymer comprises the reaction product of (a) at least one base block copolymer of a polymerized conjugated diene or a polymerized alkenyl aromatic and at least one end block comprising six membered anhydride ring groups and acid groups, and (b) a reactive monomer or reactive resin that will react with the anhydride and/or acid groups of said end block.
- 10. A toughened composition comprising a hybrid block copolymer, wherein said hybrid block copolymer comprises the reaction product of (a) a base block copolymer having at least one block of a polymerized conjugated diene or a polymerized alkenyl aromatic and at least one end block comprising six membered anhydride ring groups and acid groups, and (b) a reactive resin selected from the group consisting of epoxy resins, polyisocyanates and amino resins.
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15. An acrylic composition comprising an acrylic copolymer reacted with a block copolymer, wherein said acrylic copolymer has a glass transition temperature below 0°
- C. and contains at least one comonomer unit possessing a pendant reactive group capable of reacting with said block copolymer and wherein said block copolymer comprises at least one block of a polymerized conjugated diene and/or a polymerized alkenyl aromatic and at least one end block comprising a six membered anhydride ring and/or acid.
- View Dependent Claims (16, 17, 18, 19, 20, 21, 22)
- 23. A functionalized block copolymer comprising the reaction product of (i) a block copolymer comprising at least one block of a polymerized conjugated diene or a polymerized alkenyl aromatic and at least one end block comprising a six membered anhydride ring and/or the acid formed from the reaction of this ring and water and (ii) at least one reactive component selected from the group consisting of functional monomers, acrylic copolymers containing a pendant reactive group, and reactive resins.
Specification