Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Patent
1991-06-25
1992-04-28
Schofer, Joseph L.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
525528, 525530, 525532, C08F 2400
Patent
active
051090899
ABSTRACT:
The invention provides a radiation-curable liquid resin useful as a secondary coating of lightwave guides. The resin is a reaction product of (meth)acrylic acid or glyceroldi(meth)acrylate or pentaerythritoltri(meth)acrylate with a 2:1 addition compound of a diepoxide and an .alpha.,.omega. -diol with a mean molecular weight between 600 and 3000, or, a reaction product of (meth)acrylic acid or -acid chloride or isocyanatoalkyl-(meth)acrylate with a conversion product of the 2:1 addition compound and a low-molecular monovalent alcohol C.sub.1 to C.sub.10), a low-molecular bivalent alcohol (C.sub.2 to C.sub.4) or water, where the diepoxide is an aromatic diglycidylether and the .alpha.,.omega. -diol is an .alpha.,.omega.-hydroxy-terminated polyoxyalkylene, an .alpha.,.omega. -hydroxy-terminated polyester, an .alpha.,.omega. -hydroxy-terminated polybutadiene or an .alpha.,.omega. -hydroxy-terminated organo-functional polysiloxane.
REFERENCES:
patent: 4221892 (1980-09-01), Baron et al.
patent: 5057587 (1991-10-01), Birkle et al.
Birkle Siegfried
Feucht Hans-Dieter
Kamps Rainer
Rissel Eva
Schofer Joseph L.
Siemens Aktiengesellschaft
Walker Alex H.
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