Plastic and nonmetallic article shaping or treating: processes – Pore forming in situ – Composite article making
Patent
1980-08-25
1982-09-28
Anderson, Philip
Plastic and nonmetallic article shaping or treating: processes
Pore forming in situ
Composite article making
264 466, 264 469, 264263, 264268, 2642711, 264DIG71, 273 72R, 273 82A, B29D 2704, A63B 5906, A63D 900
Patent
active
043517862
ABSTRACT:
Composite bowling pins and baseball bats are formed with foamed, cured-in place plastic bodies securely adhered to a central aluminum core by a somewhat thermoplastic adhesive coating. The exothermic reaction attendant to curing the plastic so softens the adhesive coating that it does not interfere with shrinkage of the plastic body relative to the core. This minimizes stress concentrations in the composite construction which otherwise tend to lead to cracking in use.
REFERENCES:
patent: 1555389 (1925-09-01), Stevens
patent: 2537982 (1951-01-01), Finn
patent: 2857931 (1958-10-01), Lawton
patent: 3971837 (1976-07-01), Hasegawa et al.
patent: 4032143 (1977-06-01), Mueller et al.
patent: 4048274 (1977-09-01), Hoge et al.
3 M Company Bulletin: "Scotch-Clad Fuel Resistant Coating No. 776", St. Paul, Minn., 3 M Company, Adhesives, Coatings and Sealers Division, Oct. 1, 1966, 2 pp.
3 M Company Bulletin: "Scotch-Grip Industrial Adhesive 847", St. Paul, Minn., 3 M Company, Adhesive, Coatings and Sealers Division, Revised Oct. 1, 1976, 3 pp.
Anderson Philip
Gross Jerome A.
Mueller-Perry Co., Inc.
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