Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Process of treating scrap or waste product containing solid...
Patent
1994-07-21
1996-06-04
Seidleck, James J.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Process of treating scrap or waste product containing solid...
521 495, 521 76, 521 99, 521155, 521170, 202264, C08G 1800
Patent
active
055233309
ABSTRACT:
A process for producing a foamed isocyanate-based polymer based on an amount of water and an amount of catalyst, the process comprising the steps of: providing a first stream comprising a particulate, non-cellular filler material surrounded by a mixture comprising less than 100% by weight of the amount of water and less than 100% by weight of the amount catalyst; providing a second stream comprising an active hydrogen-containing compound and the remainder of the amount of water and the amount of catalyst; providing a thin stream comprising an isocyanate; feeding each of the first stream, the second stream and the third stream-independently of one another to a mixing device; mixing the first stream, the second stream and the third stream in the mixing device to produce a reaction mixture; and allowing the reaction mixture to expand to produce the foamed isocyanate-based polymer. A system for alternating between production of filled or untilled isocyanate-base foam is also provided.
REFERENCES:
patent: 5084486 (1992-01-01), Patten et al.
Seidleck James J.
Truong Duc
Woodbridge Foam Corporation
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