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US 2020/0048392 A1Published application
Physically crosslinkable (meth)acrylate copolymer composition
Assignee3M Innovative Properties Company
InventorsStefan H. Gryska, Joon Chatterjee, Deepti Gopalakrishnan, George W. Griesgraber, Larry R. Krepski, Babu N. Gaddam
Life of this patent
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Abstract
Described is a polymerizable polymer composition compri a) a copolymerizable macromer, b) a (meth)acrylate ester monomer; and c) a polyfunctional type I photoinitiator.
Claims12
A polymerizable polymer composition comprising:
- a) a copolymerizable macromer;
- b) a (meth)acrylate ester monomer;
- and
- c) a polyfunctional type I photoinitiator.
1 more element
A copolymer of the formula
- R10-([Racryl]a-[Rmacro]b)x, where
- R10 is polyvalent (hetero)hydrocarbyl group,
- [Racryl] is polymerized (meth)acrylate ester monomer units where subscript a is at least 70 parts by weight;
- and
- [Rmacro] is polymerized macromer units and subscript b is 0.1 to 30 parts by weight, wherein a+b is 100 parts by weight.
2 more elements
An A-Bx block copolymer where the A block are the low Tg (meth)acrylate ester/polar monomer copolymeric blocks and the B blocks are the high Tg blocks of the macromer and subscript x is at least 2, preferably 2 to 3.
Dependencies are inferred from the claim text.