C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
C08L 75/04 (2006.01) C08F 2/48 (2006.01) C08G 18/63 (2006.01) C08J 3/28 (2006.01) C08L 33/00 (2006.01) C09D 4/00 (2006.01) C09D 133/00 (2006.01) C09D 175/04 (2006.01)
Patent
CA 2085743
2085743 9203483 PCTABS00010 A tough polymeric mixture comprises the polymerized product of admixture I or II, wherein admixture I comprises 5 to 45 weight percent of a first monomer and a photoinitiator therefor, said first monomer being at least one free-radically polymerizable monomer, and 95 to 55 weight percent of a second monomer and a photoinitiator therefor, said second monomer being at least one set of polyurethane precursors, and admixture II comprises 5 to 45 weight percent of a first monomer and a photoinitiator therefor, said first monomer being at least one set of polyurethane precursors, and 95 to 55 weight percent of a second monomer and a photoinitiator therefor, said second monomer being at least one free-radically polymerizable monomer, said polymeric mixture having been prepared by a process involving two sequential actinic radiations of wavelength ranges centered around .lambda.1 and .lambda.2, respectively, wherein .lambda.1 and .lambda.2 differ from each other by at least 30 nm, and wherein the actinic radiation centered around .lambda.1 does not substantially polymerize the second monomer, and wherein the area under a stress-strain curve as determined by ASTM D638-89 for said polymeric mixture is at least 10 percent greater, preferably 20 percent greater, and more preferably at least 50 percent greater when said precursor monomers are cured by said sequential photoinitiation process compared to when the same mixture is cured by a single photostage cure.
Devoe Robert J.
Williams Jerry W.
Minnesota Mining And Manufacturing Company
Smart & Biggar
LandOfFree
Polymeric mixtures and process therefor does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Polymeric mixtures and process therefor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Polymeric mixtures and process therefor will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1708629