Intrinsically low birefringent molding polymers, process for...

Details Intrinsically low birefringent molding polymers, process for... Intrinsically low birefringent molding polymers, process for...

C - Chemistry, Metallurgy

08

F

402/1, 402/301

C08F 220/52 (2006.01) C08F 8/32 (2006.01) C08F 8/48 (2006.01) G11B 7/253 (2006.01) G11B 7/26 (2006.01)

Patent

CA 2031783

ABSTRACT Intrinsically low birefringent molding polymers have a molten stress optic coefficient that is greater than or equal to -1000 Brewsters and less than or equal to +1000 Brewsters, a glass transition temperature of at least 140°C, and a water absorption (AH20 according to ASTM D570-81 after 24 hours immersion in water at 23°C) of less than 0.25 percent and comprise in polymerized form at least one structural component providing a positive melt homopolymer stress optic coefficient and at least one other structural component providing a negative melt homopolymer stress optic coefficient. They are particularly useful as substrates for optical storage discs. 36,077C-F

Affiliated with

Also associated with

Rating

Intrinsically low birefringent molding polymers, process for... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Intrinsically low birefringent molding polymers, process for..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Intrinsically low birefringent molding polymers, process for... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1945261