Light curable compositions

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11377573
APP PUB NO 20210198520A1
SERIAL NO

17268401

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A curable composition that includes a urethane multifunctional (meth)acrylate, an inorganic filler having a primary particle dimension of at least 200 nm, a photoinitiator system that can be activated by electromagnetic radiation in the range of 340-550 nm, a reactive diluent, and a reinforcing silica having a primary particle dimension of 100 nm of less. The sum of the absolute value of the difference in the refractive index of the filler and the refractive index of the composition cured without filler plus the birefringence of the filler is 0.054 or less, i.e. 0.054≥|nfiller−nmatrix|+δfiller, where nfiller is the refractive index of the filler, nmatrix is the refractive index of the composition cured without filler, and δfiller is the birefringence of the filler.

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Patent Owner(s)

  • 3M INNOVATIVE PROPERTIES COMPANY

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Craig, Bradley D Lake Elmo, US 67 892
Dunbar, Timothy D Woodbury, US 24 4237
Kropp, Michael A Cottage Grove, US 96 1180
Kryger, Matthew J Hudson, US 29 40
Lin, Ying Woodbury, US 54 245
Pokorny, Richard J Maplewood, US 150 1878
Ye, Sheng Redmond, US 196 829
Zhu, Dong-Wei North Oaks, US 55 778

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