公开(公告)号：US6090328A

公开(公告)日：2000-07-18

申请号：US201762

申请日：1998-12-01

申请人： Keizo Makuuchi ,  Fumio Yoshii ,  Varghese Siby ,  Yosuke Katsumura

发明人： Keizo Makuuchi ,  Fumio Yoshii ,  Varghese Siby ,  Yosuke Katsumura

IPC分类号： C08L7/02 ,  C08C1/00 ,  C08J3/24 ,  C08L29/04 ,  C08L39/06 ,  C08L71/02 ,  C08L101/14 ,  C08J5/00 ,  C08F2/48 ,  C08J45/00

CPC分类号： C08J3/243 ,  C08J2307/00

摘要： The tear strength of a vulcanized natural rubber latex shaped article is improved by shaping a mixture of a prevulcanized natural rubber latex and a water-soluble polymer. The prevulcanization of a natural rubber latex may be done by exposure to a radiation. The water-soluble polymer may be selected from the group consisting of polyvinyl alcohol, polyethylene oxide, polyvinyl pyrrolidone and mixtures thereof. The water-soluble polymer may be added to the vulcanized natural rubber latex in an amount of 1-10 parts by weight per 100 parts by weight of the natural rubber.

摘要翻译： 通过将预先硫化的天然橡胶胶乳和水溶性聚合物的混合物成形来改善硫化天然橡胶胶乳成型制品的撕裂强度。 天然橡胶胶乳的预硫化可以通过暴露于辐射来进行。 水溶性聚合物可以选自聚乙烯醇，聚环氧乙烷，聚乙烯吡咯烷酮及其混合物。 可以将水溶性聚合物以每100重量份天然橡胶1-10重量份的量加入硫化天然橡胶胶乳中。

公开(公告)号：US6054527A

公开(公告)日：2000-04-25

申请号：US773570

申请日：1996-12-27

申请人： Gary D. Voss ,  Benny B. Smith

发明人： Gary D. Voss ,  Benny B. Smith

IPC分类号： C08J5/06 ,  C09J111/02 ,  C08J45/00

CPC分类号： C08J5/06 ,  C09J111/02 ,  C08J2321/00

摘要： A single adhesive composition for use in bonding more than one class of rubber polymer to textiles, in particular nylon and polyester fabric. The composition comprises an aqueous mixture of: a) about 85 to about 90 weight % polychloroprene latex; b) about 2 to about 6 weight % of at least one prepolymer of resorcinol with formaldehyde; c) about 4 to about 8% by weight of at least one blocked diisocyanate compound; and d) sufficient water to adjust the solids content of the mixture to about 15 to about 40% by weight; wherein the percentage of solids add-on on fabric treated with the composition ranges between about 5 and about 20% based on the weight of the untreated fabric. The preferred blocked diisocyanate compound is caprolactam blocked methylene-bis-(4-phenylisocyanate). The end-products that are contemplated for the present invention include, but are not limited to, diaphragms, molded articles, V-belt covers, conveyor belts, bead wraps for tires, hose wrap, dodge couplings and the like.

摘要翻译： 用于将多于一类橡胶聚合物粘合到纺织品，特别是尼龙和聚酯织物的单一粘合剂组合物。 该组合物包含以下混合物：a）约85至约90重量％的聚氯丁二烯胶乳; b）约2至约6重量％的间苯二酚与甲醛的至少一种预聚物; c）约4至约8重量％的至少一种封端二异氰酸酯化合物; 和d）足够的水以将混合物的固体含量调节至约15至约40重量％; 其中基于未处理织物的重量，用组合物处理的织物上的固体添加物的百分比范围为约5至约20％。 优选的封端二异氰酸酯化合物是己内酰胺封闭的亚甲基双 - （4-苯基异氰酸酯）。 本发明预期的最终产品包括但不限于隔膜，模制品，V形皮带罩，输送带，轮胎用胎圈包裹物，软管包裹物，闪避联接器等。