US 11,725,085 B2
Elastomeric articles, compositions, and methods for their production
Khon Pu Foo, Selangor (MY); and Kumaresan Prabhakaran, Selangor (MY)
Assigned to SKINPROTECT CORPORATION SDN BHD, Selangor (MY)
Filed by SKINPROTECT CORPORATION SDN BHD, Selangor (MY)
Filed on Jun. 22, 2020, as Appl. No. 16/907,624.
Application 16/907,624 is a continuation of application No. 15/142,707, filed on Apr. 29, 2016, granted, now 10,731,013.
Claims priority of application No. 2016900326 (AU), filed on Jan. 29, 2016; and application No. 2016900327 (AU), filed on Jan. 29, 2016.
Prior Publication US 2020/0317873 A1, Oct. 8, 2020
Int. Cl. C08K 3/22 (2006.01); C08J 5/02 (2006.01); A61B 42/10 (2016.01); C08K 5/053 (2006.01); C08K 3/30 (2006.01); A61L 31/04 (2006.01); C08K 3/06 (2006.01); C08K 5/07 (2006.01); A61B 17/00 (2006.01)
CPC C08J 5/02 (2013.01) [A61B 42/10 (2016.02); A61L 31/049 (2013.01); C08K 3/06 (2013.01); C08K 3/22 (2013.01); C08K 3/30 (2013.01); C08K 5/053 (2013.01); C08K 5/07 (2013.01); A61B 2017/00526 (2013.01); C08J 2309/04 (2013.01); C08K 2003/222 (2013.01); C08K 2003/2227 (2013.01); C08K 2003/2241 (2013.01); C08K 2003/2296 (2013.01); C08K 2201/014 (2013.01); C08K 2201/019 (2013.01)] 13 Claims
 
1. A method of manufacturing a synthetic elastomeric article comprising:
adding (i) a cross-linking composition comprising an aqueous solution of a negatively-charged multivalent metal complex ion having a pH of at least 9.0 and (ii) a second cross-linking agent comprising either: (a) sulphur and a sulphur donor, (b) a multivalent metal oxide or ionic cross-linking agent, (c) sulphur, a sulphur donor and an ionic cross-linking agent, or (d) sulphur donor, to an aqueous suspension of a synthetic carboxylated polymer having a pH of at least 9.0 to produce a synthetic latex composition, wherein a source of multivalent metal in the negatively charged multivalent metal complex ion is (A) a multimetal oxide of the multivalent metal, (B) a hydroxide of the multivalent metal, or (C) a salt of the multivalent metal;
shaping the synthetic latex composition; and
curing the synthetic latex composition so as to obtain the synthetic elastomeric article.