Carboxylic acid-modified nitrile-based copolymer latex composition and dip molded article including the same
First Claim
1. A carboxylic acid-modified nitrile-based copolymer latex composition comprising:
- a carboxylic acid-modified nitrile-based copolymer latex having a glass transition temperature of −
30 to −
20°
C.; and
a bentonite dispersion solution,wherein the carboxylic acid-modified nitrile-based copolymer latex is formed by polymerizing a monomer mixture including 62.2 to 70 wt % of 1,3 butadiene, 25 to 31.4 wt % of acrylonitrile, and 5 to 6.8 wt % of methacrylic acid based on a total weight of monomers constituting the carboxylic acid-modified nitrile-based copolymer,wherein the carboxylic acid-modified nitrile-based copolymer latex and the bentonite dispersion solution are included at a weight ratio of 99;
1 to 95;
5,wherein in the bentonite dispersion solution, 1 to 8 parts by weight of bentonite is dispersed based on 100 parts by weight of a solution, andwherein bentonite is present in an amount ranging from 0.022 to 0.87 parts by weight based on 100 parts by weight of dried carboxylic acid-modified nitrile-based copolymer latex.
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Abstract
The present invention relates to a carboxylic acid-modified nitrile-based copolymer latex composition and a dip molded article including the same, the composition including: a carboxylic acid-modified nitrile-based copolymer latex having a glass transition temperature of −30 to −20° C.; and a bentonite dispersion solution. The dip molded article using the carboxylic acid-modified nitrile-based copolymer latex composition according to the present invention has high tensile strength and excellent wearable sensation, and thus the dip molded article may be usefully applied to dip molded latex articles such as surgical gloves, checkup gloves, a condom, a catheter, industrial gloves, household gloves, or health care articles.
5 Citations
7 Claims
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1. A carboxylic acid-modified nitrile-based copolymer latex composition comprising:
-
a carboxylic acid-modified nitrile-based copolymer latex having a glass transition temperature of −
30 to −
20°
C.; anda bentonite dispersion solution, wherein the carboxylic acid-modified nitrile-based copolymer latex is formed by polymerizing a monomer mixture including 62.2 to 70 wt % of 1,3 butadiene, 25 to 31.4 wt % of acrylonitrile, and 5 to 6.8 wt % of methacrylic acid based on a total weight of monomers constituting the carboxylic acid-modified nitrile-based copolymer, wherein the carboxylic acid-modified nitrile-based copolymer latex and the bentonite dispersion solution are included at a weight ratio of 99;
1 to 95;
5,wherein in the bentonite dispersion solution, 1 to 8 parts by weight of bentonite is dispersed based on 100 parts by weight of a solution, and wherein bentonite is present in an amount ranging from 0.022 to 0.87 parts by weight based on 100 parts by weight of dried carboxylic acid-modified nitrile-based copolymer latex. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification