Appeal No. 95-4199
Application No. 08/068,445
The subject matter on appeal relates to thermoplastic
terpolymers having particular polysiloxane, aromatic polyester
and polycarbonate segments. See specification, page 1,
lines 6-8. These terpolymers are said to exhibit “non-
Newtonian melt viscosities, advantageous low temperature
properties and resistance to solvents, chemicals, hydrolysis
and to photodecomposition.” See specification, page 1, lines
9- 11.
Cl aims
1 and 8
ar e
re prese
ntative of the subject matter on appeal and read as follows:
1. A thermoplastic terpolymer, which comprises:
(a) about 1 to about 50 weight percent of a repeating or
recurring polysiloxane unit, based on the total weight of the
terpolymer, of the formula:
where R and R are each independently selected from hydrogren,1 2
hydrocarbyl, or halogen-substituted hydrocarbyl; D is an
integer of from about 10 to about 120; and Y is hydrogen,
2
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