content_image/924531.jpg
# c19) United States c12) Patent Application Publication 

# Liu 

# (54) SILICONE-ACRYLIC COPOLYMER 

(71) Applicant: HENKEL US IP LLC, Rocky Hill, CT (US) 

(72) Inventor: Yuxia Liu, Dayton, NJ (US) 

(21) Appl. No.: 14/593,205 

(22) Filed: Jan. 9, 2015 

(63) Continuation of application No. 14/155,452, filed on Jan. 15, 2014, now Pat. No. 8,962,748, which is a continuation of application No. 13/617,968, filed on Sep. 14, 2012, now Pat. No. 8,664,329, which is a continuation ofapplication No. PCT/US2011/032609, filed on Apr. 15, 2011. 

(60) Provisional application No. 61/327,141, filed on Apr. 23, 2010. 

## Related U.S. Application Data 

<img src='content_image/924531.jpg'>

(51) Int. Cl. C08G 77138 (2006.01) 

(52) U.S. Cl. CPC ...................................... C08G 77138 (2013.01) 

## (57) ABSTRACT 

A novel silicone-acrylic copolymer which comprises a covalently bonded silicone polymer with an acrylic polymer through the -Si-O-Si- linkage is described. The sili› cone-acrylic copolymer is a reaction product of (a) a silicone polymer, (bi) a mixture of acrylic monomers wherein at least one acrylic monomer comprises a silane (meth)acrylic mono› mer and/or a siloxane (meth)acrylic macromer with a radical initiator to form an acrylic prepolymer or (bii) an acrylic polymer which comprises a silane or a siloxane functional group; and ( c) a scrambling catalyst, wherein the ratio of the silicone polymer (a) and the mixture ofacrylic monomers (bi) or polymer (bii) is from 50: 1 to 1 :50. The silicone-acrylic copolymer is useful as an adhesive, sealant, coating, and the like. 

US 20150119536Al 

# c10) Pub. No.: US 2015/0119536 Al 

# (43) Pub. Date: Apr. 30, 2015 

## Publication Classification 

