Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Reexamination Certificate
2008-03-06
2010-10-19
Woodward, Ana L (Department: 1796)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
C525S123000, C525S125000, C525S127000, C525S128000, C525S178000, C525S179000, C525S180000, C525S183000, C525S420000, C525S423000, C525S424000, C525S425000, C525S427000, C525S434000, C525S436000, C525S437000, C525S438000, C525S440060, C525S441000, C525S449000, C525S452000, C525S453000, C525S454000, C525S456000, C525S457000, C525S459000, C424SDIG016
Reexamination Certificate
active
07816451
ABSTRACT:
Star polymers prepared by reacting a highly branched polymer and either a lactone or lactam are disclosed. These star polymers find particular application as additives for powder coating compositions, to improve various performance properties thereof. Powder coating composition comprising the described star polymers are also disclosed.
REFERENCES:
patent: 5493000 (1996-02-01), Aharoni
patent: 5788989 (1998-08-01), Jansen et al.
patent: 6432484 (2002-08-01), Corcoran et al.
Ambrose Ronald R.
Kulfan Jackie L.
Kurtz Christopher P.
Retsch, Jr. William H.
Ziegler Michael J.
Meder Julie W.
Meyers Diane R.
PPG Industries Ohio Inc.
Woodward Ana L
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