C - Chemistry – Metallurgy – 09 – J
Patent
C - Chemistry, Metallurgy
09
J
C09J 183/04 (2006.01)
Patent
CA 2085643
PATENTS 60SI-1484 ABSTRACT OF THE DISCLOSURE Distortion and haze of pressure sensitive tapes upon removal can be minimized by incorporating a small amount of chemically compatible, high molecular weight silicone polymer release modifier to the curable PSA compositions. Organopolysiloxanes of the general formula: RR12SiO(12SiO)x(RR2SiO)ySiR12R are used as the release modifier, wherein each R1 and R2 is independently an aryl or alkyl group having from 1 to about 10 carbon atoms, each R is independently chosen from the following groups: R1, R2, alkenyl having from 1 to about 10 carbon atoms, hydrogen, alkoxy (such as methoxy, ethoxy, propoxy, etc.) hydroxy, epoxy, amino, and fluoroalkyl having up to 10 carbon atoms; x and y are each an integer such that the value of (x + y) is sufficient to yield a composition having a viscosity of from at least 1500 cps at room temperature to as high as the viscosity of silicone gums. When compared to similar compositions without the release modifier, a cured silicone PSA with much less distortion, a smoother surface, and clearer optics is obtained upon removal or dispensing.
Kerr Stuart Robert III
Lin Shaow Burn
Company General Electric
Craig Wilson And Company
LandOfFree
Silicone pressure-sensitive adhesives with control removal... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Silicone pressure-sensitive adhesives with control removal..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Silicone pressure-sensitive adhesives with control removal... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1719657