Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From carboxylic acid or derivative thereof
Reexamination Certificate
2011-08-16
2011-08-16
Truong, Duc (Department: 1765)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From carboxylic acid or derivative thereof
C528S355000, C528S486000, C528S487000, C528S495000, C528S499000, C525S419000, C525S420000, C502S103000, C502S168000, C502S172000, C502S216000, C502S217000
Reexamination Certificate
active
07999061
ABSTRACT:
A catalytic lactide and glycolide copolymerization system comprising a trifluoromethane sulfonate as a catalyst and copolymerization additive and a copolymerization process.
REFERENCES:
patent: 0784044 (1997-07-01), None
patent: 0953589 (1999-03-01), None
Bourissou Didier
Cazaux Jean-Bernard
Cherif-Cheikh Roland
Dumitrescu Anca
Lacombe Frédéric
Hunton & Williams LLP
IPSEN Pharma S.A.S.
Truong Duc
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