Patent ID: 9505943
Filing Date: 2016-11-29
CPC Classification: C08F,C08L,C09D,C09J

Claim Text:
1. An aqueous vinyl polymer coating composition comprising at least: a) a vinyl polymer A, comprising: b) a vinyl polymer B, comprising: I) the weight % of olefinically unsaturated and arylalkylene monomers used to form polymer A and polymer B when calculated based on the total amount of (a)(i)+(a)(ii)+(a)(iii)+(b)(i)+(b)(ii)+(b)(iii) being 100% are in a respective ratio of 5:75 to 95:25; II) at least 10% by weight of the total amount of monomers (a)(i)+(a)(ii)+(a)(iii)+(b)(i)+(b)(ii)+(b)(iii) used to form polymer A and polymer B is derived from at least one bio-renewable olefinically unsaturated monomer such that the amount of C14 isotope in the polymer A and/or the polymer B comprise at least about 1.5 dpm/gC of carbon-14; III) the acid value of polymer A is greater than the acid value of polymer B by at least 10 mgKOH; IV) polymer A and polymer B have a glass transition temperature difference of at least 20° C.; V) polymer B is prepared in the presence of polymer A; VI) said coating composition on drying has a Koenig hardness of at least 20 sec; and VII) said coating composition has a minimum film forming temperature of <55° C.