Title:
ADHESIVE-FREE BOTTLE CAP GASKET AND/OR PADDING AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2018/205326
Kind Code:
A1
Abstract:
An adhesive-free bottle cap gasket pellet, prepared from the following raw materials in parts by weight: 50-80 parts of thermoplastic elastomer; 15-40 parts of polyethylene; 5-15 parts of rosin resin; and 5-10 parts of octadecanamide. A preparation method comprises: thoroughly mixing the raw materials in parts by weight, extruding, pelletizing, water-cooling, and drying same to form special pellets for a bottle cap gasket and/or padding, and putting the pellets into a molding machine, extruding droplets into a bottle cap at 100-150°C, compressing to form so as to obtain an adhesive-free gasket and/or padding. The gasket pellets can be directly injection-molded so as to form a gasket and/or padding with a strong strength of bonding with the bottle cap without any adhesive, so that the bottle cap production process is simpler and the energy consumption is reduced; the gasket pellets have passed strict food safety testing, and are especially applicable to the production of food bottle caps; the adverse effects of the adhesive on the food in a bottle are avoided; the competitiveness of domestic bottle cap manufacturers is greatly increased.
Inventors:
CHE JUNZHENG (CN)
ZHU FANGMING (CN)
JIAN JINGJI (CN)
ZHU FANGMING (CN)
JIAN JINGJI (CN)
Application Number:
PCT/CN2017/087230
Publication Date:
November 15, 2018
Filing Date:
June 06, 2017
Export Citation:
Assignee:
FOSHAN TONGJUN ENVIRONMENTAL PROTECTION TECH CO LTD (CN)
International Classes:
C08L53/02; C08L23/06; C08L23/08
Foreign References:
| CN101177509A | 2008-05-14 | |||
| CN101294056A | 2008-10-29 | |||
| CN103509227A | 2014-01-15 | |||
| CN102876052A | 2013-01-16 | |||
| US5486558A | 1996-01-23 |
Attorney, Agent or Firm:
YOGO PATENT & TRADE MARK AGENCY LIMITED COMPANY (CN)
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