Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From phenol – phenol ether – or inorganic phenolate
Patent
1998-11-20
2000-12-12
Dawson, Robert
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From phenol, phenol ether, or inorganic phenolate
549546, 549547, 549554, 523451, 523461, C08G 5968, C08G 6510
Patent
active
061600776
ABSTRACT:
Halogen-free epoxy resins that arise from the addition of an epoxy component to a phenol component with base catalysis are disclosed, whereby the molar mass can be adjusted by means of the molar ratios of the initial materials. The resulting resins can be used in the field of electronics, both as molding compounds and as circuit board materials and adhesives.
REFERENCES:
patent: 3725341 (1973-04-01), Roger et al.
patent: 4168331 (1979-09-01), Davis
patent: 5158990 (1992-10-01), Bayer et al.
Bayer Heiner
Fischer Walter
Hekele Wilhelm
Wipfelder Ernst
Aylward D.
Dawson Robert
Siemens Aktiengesellschaft
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