Title: Biological solidification technology of natural latex
Application Number: 98122556 Application Date: 1998.11.18
Publication Number: 1222528 Publication Date: 1999.07.14
Approval Pub. Date: Granted Pub. Date: 2002.01.16
International Classifi-cation: C08C1/15
Applicant(s) Name: Kunming Inst. of Botany, Chinese Academy of Scienc Address: 650204
Inventor(s) Name: Zeng Ying, Wang Dong
Attorney & Agent: ma xiaojing
Abstract:
     During the solidification, protease is utilized to decompose the protecting layer protein of latex granule and to promote the gelatification of lalex granule owing to the destruction of the protecting layer; starch is added into latex and its enormous molecular chain constitutes hydrophilic capillary pipes favorable to the drying of latex granule; hydroxylamine sulfate of certain concentration is used to regulate the Mooney viscosity of raw rubber. The process is simple but practical and can obtain dry rubber with nitrogen content lower than 0.4%, PRI higher than 82, Mooney viscosity not greater than 76, excellent vulcanization property for obtain vulcanized rubber with physical performance meeting the standard of specific rubber for radial ply tyre.
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