Process for producing synthetic resin foam, blowing agent...

Details Process for producing synthetic resin foam, blowing agent... Process for producing synthetic resin foam, blowing agent...

2007-08-28

2007-08-28

Cooney, Jr., John M. (Department: 1711)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Cellular products or processes of preparing a cellular...

C252S182240, C252S182270, C252S182280, C510S407000, C510S412000, C516S012000, C521S117000, C521S128000, C521S131000, C521S170000, C521S172000, C521S173000, C521S174000

Reexamination Certificate

active

10511442

ABSTRACT:
The present invention relates to a process for producing a synthetic resin foam which comprises reacting at least one polyol with at least one polyisocyanate compound in the presence of an organic blowing agent, wherein the organic blowing agent is a blowing agent for synthetic resin foams which is characterized by being a mixture comprising 1,1,1,3,3-pentafluorobutane (HFC-365mfc) and at least one halogen-containing compound and optionally containing at least one member selected from the group consisting of glycol compounds and amide compounds. Also provided are: a premix comprising the blowing agent and a polyol mixture; and a process for producing a synthetic resin foam from these.

REFERENCES:
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International Search Report dated Aug. 19, 2003.

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