Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Patent
1980-10-17
1982-11-02
Bell, James J.
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
131341, 131343, 131345, 156156, 1562722, 1562733, 1562735, 219 1055R, 219 1061R, 427 451, 493 43, B29N 902
Patent
active
043571883
ABSTRACT:
A method for manufacturing cigarette filters which have a well-stabilized shape in which acetate fibrous tows impregnated with carboxylic acid ester of polyol are formed into a predetermined shape, uniformly impregnated with water, and irradiated with microwave energy. Water is used during the application of microwave energy to enhance the absorption of microwave energy and hence heating of the filter. This causes the carboxylic acid ester of polyol to very rapidly disperse causing it to permeate into the acetate fiber to rapidly complete the stabilization and solidification of the filter.
REFERENCES:
patent: 3804695 (1974-04-01), Randall et al.
patent: 3890983 (1975-06-01), Sawada et al.
patent: 4003774 (1977-01-01), Lebet et al.
patent: 4024001 (1977-05-01), Lyon et al.
patent: 4074724 (1978-02-01), Morie et al.
Mochida Naoki
Morifuji Kazuhiko
Sakai Takashi
Bell James J.
Mitsubishi Acetate Co. Ltd.
Mitsubishi Rayon Co. Ltd.
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