Thermally crosslinked acrylic hotmelts

Details Thermally crosslinked acrylic hotmelts Thermally crosslinked acrylic hotmelts

2005-04-05

2005-04-05

Berman, Susan (Department: 1711)

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

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C428S343000, C428S349000, C428S3550RA, C428S3550AC, C522S126000, C522S129000

Reexamination Certificate

active

06875506

ABSTRACT:
Polyacrylates obtainable by thermal crosslinking of a polymer mixture comprising the following components:a) a polyacrylate copolymer of the following monomersa1) acrylates and/or methacrylates of the following formulain-line-formulae description="In-line Formulae" end="lead"?CH2═CH(R1)(COOR2),in-line-formulae description="In-line Formulae" end="tail"? where R2═H or CH3and R2is an alkyl chain with 1-20 carbon atoms,at 65-99% by weight, based on a),a2) olefinically unsaturated monomers containing functional groups,at 0-15% by weight, based on a),a3) acrylates and/or methacrylates whose alcohol component contains tert-butoxycarbonyl (BOC) and/or hydroxyl groups,at 1-20% by weight, based on a),at 80-99.8% by weight, based on the polymer mixture,b) a polymerization regulating photoinitiator at 0.1-15% by weight, based on the polymer mixture,c) difunctional isocyanate and/or difunctional epoxide at 0.1-5% by weight, based on the polymer mixture.

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English Abstract of JP 5-17726.
English Abstract of DE 2 131 059.
English Abstract of DE 43 16 317.

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