Process for making and using high frequency weldable material

Details Process for making and using high frequency weldable material Process for making and using high frequency weldable material

1975-12-05

1978-06-20

Powell, William A.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

291211, 291212, 156283, 156380, 156291, 156548, 156322, 427197, 428206, 428327, 428283, B29C 1904

Patent

active

040960161

ABSTRACT:
Discrete particles consisting of thermoplastic synthetic resin, which are adapted to melt and to produce a high frequency weld joint under the action of a high frequency field and to resist the action of detergents and dry cleaning agents are arranged on at least one boundary surface of a support structure which is permeable to gas, vapor and liquid, and which is preferably constituted by a continuous web to which the particles are preferably fixed by the application of pressure and/or heat. An additional layer, preferably also consisting of a continuous web, is then applied to the one boundary surface of the support structure and the thus-formed composite structure is subjected to the action of a high frequency field to provide a welded joint connecting the additional layer to the support structure.

REFERENCES:
patent: 2393529 (1946-01-01), Harrigan
patent: 2746898 (1956-05-01), Buckwalter et al.
patent: 2859153 (1958-11-01), Zucht
patent: 3098235 (1963-07-01), Gusman
patent: 3348995 (1967-10-01), Baker et al.
patent: 3359127 (1967-12-01), Meyer et al.
patent: 3393119 (1968-07-01), Dugan
patent: 3463690 (1969-08-01), Converse et al.
patent: 3535197 (1970-10-01), Fishbein et al.

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