Plastic and nonmetallic article shaping or treating: processes – Mechanical shaping or molding to form or reform shaped article – Shaping against forming surface
Patent
1984-11-23
1986-09-09
Woo, Jay H.
Plastic and nonmetallic article shaping or treating: processes
Mechanical shaping or molding to form or reform shaped article
Shaping against forming surface
156196, 156212, 156242, 156284, 249 62, 264317, 264DIG44, 264 86, 264DIG10, 425DIG12, 428241, 428251, 4283139, B28B 730, B29C 3378
Patent
active
046108360
ABSTRACT:
Method and apparatus is provided for reinforcing a structural member of a vehicle body by the use of adhesively bonded together glass macrospheres of 3 to 9 mm. in diameter. The adhesive is not more than about 40% by weight of the mixture so that voids remain between the adjacent macrospheres to permit airflow through the reinforcement and the reinforced structural member upon curing adhesive. The adhesive may be curable at ambient temperature or may be a high temperature curable adhesive which is cured in a vehicle body paint curing oven to bond the macrospheres to one another and to the structural member. The adhesion of the macrospheres to the structural member may be facilitated by an epoxy coated flexible sheet material lining the walls of the structural member. The adhesive coated macrospheres may be closely packed into the structural member by pouring or blowing.
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"Reduce Part Weight and Cost with Hollow Microspheres for Plastics", Dr. Elaine C. Barber.
"Tiny Bubbles Beef Up Plastics, Cut Costs and Reduce Weight", 1977.
"Shedding Pounds in Plastics: Microspheres Are Moving", Robert H. Wehrenberg, II, 1978.
General Motors Corporation
Heitbrink Timothy W.
Leahy Charles E.
Woo Jay H.
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