Invention Grant
- Patent Title: Photopolymerizable compositions including a polyurethane methacrylate polymer prepared using a polycarbonate diol, articles, and methods
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Application No.: US17344096Application Date: 2021-06-10
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Publication No.: US11708428B2Publication Date: 2023-07-25
- Inventor: Thomas P. Klun , Zeba Parkar , John M. Riedesel , Richard J. Pokorny , Chad M. Amb , Benjamin R. Coonce , Robert S. Clough , Tianyu Wu , Saswata Chakraborty , Yongshang Lu , Benjamin C. MacMurray
- Applicant: 3M INNOVATIVE PROPERTIES COMPANY
- Applicant Address: US MN St. Paul
- Assignee: 3M Innovative Properties Company
- Current Assignee: 3M Innovative Properties Company
- Current Assignee Address: US MN St. Paul
- Agent Adrian L. Pishko
- Main IPC: C08F2/46
- IPC: C08F2/46 ; C08F2/50 ; C08G61/04 ; B33Y10/00 ; B33Y30/00 ; B33Y70/00 ; B29C64/129 ; C08F2/44 ; C08F220/18 ; C08F290/06 ; C08G18/44 ; C08G18/67 ; C08K5/00 ; C08K5/3437

Abstract:
The present disclosure provides a photopolymerizable composition. The photopolymerizable composition includes a) 40-60 parts by weight of a monofunctional (meth)acrylate monomer, per 100 parts of the total photopolymerizable composition; b) a photoinitiator; and c) a polymerization reaction product of components. A cured homopolymer of the monofunctional (meth)acrylate monomer has a glass transition temperature of 125 degrees Celsius or greater. The polymerization reaction product of components includes i) a diisocyanate; ii) a hydroxy functional methacrylate; iii) a polycarbonate diol; and iv) a catalyst. The polymerization reaction product includes a polyurethane methacrylate polymer. Often, the polyurethane methacrylate polymer has a weight average molecular weight of 8,000 g/mol or greater. The present disclosure further provides an article and methods thereof.
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