Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Cellular products or processes of preparing a cellular...
Reexamination Certificate
2005-07-26
2005-07-26
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...
C252S067000, C252S068000, C252S069000, C252S364000, C516S012000, C521S112000, C521S116000, C521S117000, C521S131000, C521S170000, C521S174000
Reexamination Certificate
active
06921779
ABSTRACT:
Rigid polyurethane blowing agent enhancers, methods for using them, and the products produced by these methods are disclosed. The enhancers are low molecular weight alcohols and/or ethers that assist the action of blowing agents comprising a hydrohalocarbon compound.
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Air Products and Chemicals Inc.
Cooney Jr. John M.
Leach Michael
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