Patent ID: 9326557
Filing Date: 2016-05-03
CPC Classification: A41D,B29D,C08F,C08K,C08L

Claim Text:
1. A glove for clean room use formed from an elastomer that comprises 25-30 weight % of acrylonitrile, 62-71 weight % of butadiene and 4-8 weight % of unsaturated carboxylic acid (total 100 weight %) and that does not contain sulfur cross-linking agents or sulfur vulcanization accelerators, wherein: (i) the unsaturated carboxylic acid comprises a first fraction of substituents and a second fraction of substituents, the second fraction being residual with respect to the first fraction, the first fraction of substituents forming cross-links via bonds with each other, the second fraction of substituents forming cross-links via bonds with a bivalent metal; (ii) the elastomer had a Mooney viscosity ML (iii) the glove has been prepared from the elastomer without use of sulfur cross-linking agents or sulfur vulcanization accelerators; (iv) the glove comprises an inner surface for contacting a hand of a user and an outer surface for contacting an object during use; (v) the inner surface has been processed by washing with water after a chlorine treatment of the inner surface, resulting in the inner surface having decreased tackiness; (vi) the outer surface has been processed by washing with pure water after a chlorine treatment of the outer surface, resulting in (a) elution of metal or metallic salt impurities and removal of contamination particles from the glove and (b) the outer surface having increased smoothness; and (vii) thickness of the glove is 0.05-0.15 mm, glove swelling ratio at formation of the glove is 240-320, tensile stress of the glove is 22-35 MPa, elongation to break of the glove is 480-620% and tensile stress at 500% elongation of the glove is 15-35 MPa.