Title:
METHOD OF MOLDING FROM MIXTURE OF PRE-VULCANIZED NATURAL RUBBER LATEX AND WATER-SOLUBLE POLYMER, AND ITS MOLDED ARTICLE
Document Type and Number:
Japanese Patent JP3589842
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a method for improving the mechanical properties of a coating film of a natural rubber latex pre-vulcanized by radiation, particularly improving the tear strength of a molded article of a radiation-vulcanized natural rubber latex by molding a mixture of a radiation-vulcanized natural rubber latex and a water-soluble polymer, and an improved molded article obtained from the rubber latex.
SOLUTION: The method for improving the tear strength of a molded article of a vulcanized natural rubber latex comprises mixing a pre-vulcanized natural rubber latex with a water-soluble polymer, and molding the mixture. In the molded article thereby obtained, the pre-vulcanization is effected by radiation, the water-soluble polymer is selected from the group consisting of polyvinyl alcohols, polyethylene oxides, polyvinyl pyrrolidones and a mixture thereof, and the amount of the water-soluble polymer added to the vulcanized natural rubber latex is 1-10 pts.wt. based on 100 pts.wt. natural rubber.
Inventors:
Makuuchi Keizo
Fumio Yoshii
Cibby bulgees
Yosuke Katsumura
Fumio Yoshii
Cibby bulgees
Yosuke Katsumura
Application Number:
JP34293597A
Publication Date:
November 17, 2004
Filing Date:
December 12, 1997
Export Citation:
Assignee:
Japan Atomic Energy Research Institute
International Classes:
C08L7/02; C08C1/00; C08J3/24; C08L29/04; C08L39/06; C08L71/02; C08L101/14; (IPC1-7): C08L7/02; C08L29/04; C08L39/06; C08L71/02; C08L101/14
Domestic Patent References:
| JP8253602A |
Attorney, Agent or Firm:
Kazuo Shamoto
Shosuke Imai
Tadashi Masui
Tadahiko Kurita
Yasushi Kobayashi
Shurin Sakurai
Shosuke Imai
Tadashi Masui
Tadahiko Kurita
Yasushi Kobayashi
Shurin Sakurai