Plastic and nonmetallic article shaping or treating: processes – Mechanical shaping or molding to form or reform shaped article – To produce composite – plural part or multilayered article
Patent
1977-08-12
1981-05-26
Hoag, W. E.
Plastic and nonmetallic article shaping or treating: processes
Mechanical shaping or molding to form or reform shaped article
To produce composite, plural part or multilayered article
264267, 2643281, B29D 900, B29F 100
Patent
active
042698022
ABSTRACT:
The invention is concerned with a process for forming a unitary seal comprising a support section formed of a high modulus, i.e. rigid high impact strength plastic and a sealing section formed of an elastomeric material, the support and sealing section being directly bonded together without the use of an adhesive therebetween to form the unitary seal. The process comprises contacting a surface portion of the support section directly with a surface portion of the sealing section, under sufficient pressure to assure a pressed contact therebetween, with the sections at a temperature of 50.degree. C.-400.degree. C. for a time sufficient to cause bonding between the contacting surface portions to form the unitary seal.
REFERENCES:
patent: 2899402 (1959-08-01), Squire
patent: 2950266 (1960-08-01), Goldblum
patent: 2976543 (1961-03-01), Turner et al.
patent: 3069287 (1962-12-01), Hudson
patent: 3144153 (1964-08-01), Fuller et al.
patent: 3167323 (1965-01-01), Appleton
patent: 3271038 (1966-09-01), Bastow
patent: 3413183 (1968-11-01), Findlay et al.
patent: 3413389 (1968-11-01), Footner
patent: 3428725 (1969-02-01), Delmonte et al.
patent: 3443845 (1969-05-01), Walchle et al.
patent: 3469854 (1969-09-01), Linwood
patent: 3528669 (1970-09-01), Tondato
patent: 3552755 (1971-01-01), Leonard
patent: 3622427 (1970-04-01), Kelly
patent: 3657057 (1972-04-01), Shorr et al.
patent: 3709507 (1973-01-01), Underwood
patent: 3765690 (1973-10-01), Sievenpiper
patent: 3771801 (1973-11-01), Burke
patent: 3822107 (1974-07-01), Wogerer
patent: 3823577 (1974-07-01), Smith
patent: 3837660 (1974-09-01), Poggio
patent: 3919448 (1975-11-01), Dufresne
patent: 3957278 (1976-05-01), Rabe
patent: 3995868 (1976-12-01), Smith
Anon., Modern Plastics Encyclopedia, McGraw-Hill, N.Y. (1965), pp. 177-180 & 239-243.
Saunders et al., "Polyurethanes . . . " Interscience, N.Y. (1966), pp. 335, 336 & 346.
Caterpillar Tractor Co.
Dubb Hubert E.
Hoag W. E.
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