• 专利标题:   Composite rubber product comprises natural rubber layer, synthetic natural mixed rubber layer and synthetic rubber layer, which has good radiation resistance, aging resistance, acid and alkali resistance of synthetic rubber.
  • 专利号:   CN113429643-A, CN113429643-B
  • 发明人:   REN M, FENG P, TAN S, LIU G, WEI Y, QI H, SHUAI M, LUO J, XU D
  • 专利权人:   CHINA ACAD ENG PHYSICS MATERIAL INST
  • 国际专利分类:   B29C041/14, C08J005/02, C08K005/39, C08K003/22, C08K003/06, C08L011/02, C08L009/04, C08L007/02
  • 专利详细信息:   CN113429643-A 24 Sep 2021 C08L-007/02 202193 Chinese
  • 申请详细信息:   CN113429643-A CN10603260 31 May 2021
  • 优先权号:   CN10603260

▎ 摘  要

NOVELTY - Composite rubber product comprises natural rubber layer, synthetic natural mixed rubber layer and synthetic rubber layer. USE - Used as composite rubber product. ADVANTAGE - The rubber product: has good radiation resistance, aging resistance, acid and alkali resistance of synthetic rubber; satisfies needs of special operating environments while providing good operating flexibility; and also has improved compatibility between natural and synthetic rubber. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing composite rubber product, comprising (i) preparing pre-vulcanized rubber latex, natural rubber layer latex, special performance layer latex, synthetic natural mixed layer latex and synthetic latex, (ii) cleaning mold, immersing in coagulant, and drying to obtain first intermediate mold, where the coagulant includes calcium chloride, calcium nitrate and/or barium chloride, (iii) immersing first intermediate mold in natural rubber latex for 5 seconds to 5 minutes, and shaping and drying to obtain second intermediate mold, (iv) immersing second intermediate mold in radiation-shielding latex for 5 seconds to 5 minutes, and then shaping and drying it to obtain third intermediate mold, (v) immersing third intermediate mold in mixed glue for 5 seconds to 5 minutes, and then shaping and drying to obtain fourth intermediate mold, (vi) immersing fourth intermediate mold in synthetic latex for 5 seconds to 5 minutes, then shaping and drying to obtain fifth intermediate mold, and (vii) crimping, vulcanizing, demolding, cleaning, and drying gloves after immersion is completed to obtain composite rubber product