Production method of polyurethane latex condom and special mold thereof

A technology of polyurethane latex and production methods, which is applied in the direction of male contraceptives, etc., can solve the problems of difficulty in adapting to the industrial production of polyurethane condoms, the complex mold processing technology of PTFE condoms, and the inability to meet the requirements of industrial production pass rate, etc., and achieve easy batch production Variety of production and molding methods, and the effect of reducing the weight of the mold
CN104339485AInactive Publication Date: 2015-02-11CHEMCHINA ZHUZHOU RUBBER RES & DESIGN INST
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
CHEMCHINA ZHUZHOU RUBBER RES & DESIGN INST
Publication Date
2015-02-11
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a production method of a polyurethane latex condom. The production method comprises the following steps: (A) preparing polyurethane latex, namely mixing waterborne polyurethane with the solid content being 35-55% with assistants, and stirring uniformly to obtain the polyurethane latex; and (B) forming the polyurethane latex condom with the polyurethane latex obtained in the step (A) by a condom mold, wherein the mold is manufactured by a polyolefin material which is polyethylene and / or polypropylene. The invention also provides a special mold for producing the polyurethane latex condom.
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Description

technical field

[0001] The invention relates to a condom, in particular to a production method of a polyurethane latex condom and a special mold thereof. Background technique

[0002] Condoms are one of the most widely used contraceptives in the world. In the prior art, the main raw material for manufacturing condoms is natural latex, but natural latex condoms have the risk of sensitization and nitrosamine-induced cancer. Therefore, looking for a kind of more suitable raw material to produce condom is the inevitable trend of condom production development.

[0003] Compared with natural latex condoms, polyurethane condoms have the characteristics of non-toxicity, high strength, good thermal conductivity, and no allergic reaction. They are not sensitive to heat, humidity, and ultraviolet light, and have good aging resistance. effects of oil-based lubricants. Polyurethane condoms have extremely high barrier efficacy, can effectively prevent pregnancy and filter HIV, and are...

Claims

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