Manufacture of seamless laminated tubing

Details Manufacture of seamless laminated tubing Manufacture of seamless laminated tubing

1978-09-01

1981-08-11

Dixon, Jr., William R.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

138DIG3, 156156, 156187, 156287, 428 36, 428253, F16L 1100, B32B 3116, B65C 326, B29C 1700

Patent

active

042829054

ABSTRACT:
Tubing of a thermoplastic polymer for handling corrosive materials is laminated or reinforced by covering the same with a heat-softenable bonding agent as an adhesive, inserting the adhesive-covered tube in a cylindrical glass fabric sleeve, inserting the assembly in a hollow cylinder, heating the tube to a temperature to cause the softening of the bonding agent and adhesion to the tube, forcing the tube with air or centrifugal force against the inside of the cylinder to force softened bonding agent into the interstices of the glass fabric, and cooling the entire assembly while expanded to adhere the bonding agent to the fabric and thereby form a unitary structure. The reinforced tube can be bonded to the inside of a preformed steel or fiberglass-reinforced plastic pipe to serve as a protective liner therefor.

REFERENCES:
patent: 2593714 (1952-04-01), Robinson
patent: 2690769 (1954-10-01), Brown
patent: 2724672 (1955-11-01), Rubin
patent: 2731068 (1956-01-01), Richards
patent: 2783173 (1957-02-01), Walker et al.
patent: 2810424 (1957-10-01), Swartswetter et al.
patent: 2833686 (1958-05-01), Sandt
patent: 3108018 (1963-10-01), Lewis
patent: 3723234 (1973-03-01), MacDonald
patent: 3934064 (1976-01-01), Lowthian
patent: 3946196 (1976-03-01), Fitz et al.
patent: 4104095 (1978-08-01), Shaw
patent: 4112159 (1978-09-01), Pall
patent: 4132577 (1979-01-01), Wintermantel
patent: 4144632 (1979-03-01), Stroupe
patent: 4165404 (1979-08-01), Quehl

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