US 11,891,480 B2
Laminating adhesives using polyester from transesterification of polylactic acid with natural oils
Grant B. Kenion, Easton, PA (US); Alexander P. Mgaya, Cary, NC (US); Zhengmian Chang, Belle Mead, NJ (US); and Balasubramaniam Ramalingam, Cary, NC (US)
Assigned to Henkel AG & Co. KGaA, Duesseldorf (DE)
Filed by Henkel AG & Co. KGaA, Duesseldorf (DE)
Filed on Sep. 14, 2020, as Appl. No. 17/019,617.
Application 17/019,617 is a continuation in part of application No. 16/374,350, filed on Apr. 3, 2019, granted, now 10,941,246.
Application 16/374,350 is a continuation of application No. PCT/US2019/024478, filed on Mar. 28, 2019.
Application 16/374,350 is a continuation of application No. 16/043,521, filed on Jul. 24, 2018, granted, now 10,294,328, issued on May 21, 2019.
Claims priority of provisional application 62/653,795, filed on Apr. 6, 2018.
Claims priority of provisional application 62/289,432, filed on Feb. 1, 2016.
Prior Publication US 2021/0002422 A1, Jan. 7, 2021
Int. Cl. C08G 63/91 (2006.01); C08G 63/06 (2006.01); C08G 63/60 (2006.01); C08G 63/08 (2006.01); C08G 63/85 (2006.01); B01J 31/02 (2006.01); B01J 31/00 (2006.01)
CPC C08G 63/912 (2013.01) [C08G 63/06 (2013.01); C08G 63/08 (2013.01); C08G 63/60 (2013.01); C08G 63/85 (2013.01); B01J 31/00 (2013.01); B01J 31/0212 (2013.01); B01J 2231/49 (2013.01)] 16 Claims
OG exemplary drawing
 
1. An isocyanate reactive component for reaction with an isocyanate functionalized component to form a two-component laminating adhesive, comprising:
a transesterification product of a reaction mixture comprising polymeric polylactic acid and at least one natural oil; and
a high OH functionality polyol product
and wherein the reaction mixture comprises: polylactic acid present in an amount of from 50 to 85 weight percent based on a total weight of the reaction mixture; at least one natural oil present in an amount of from 13 to 30 weight percent based on the total weight of the reaction mixture; a diol present in an amount of from 2 to 36 weight percent based on the total weight of the reaction mixture; and optionally, a transesterification catalyst.