Appeal 2007-3149
Application 10/318,460
monomers in a continuous tubular reactor. Appellants also claim a process
for preparing the laminate.
Representative claims 1 and 6 read as follows:
1. A multilayer laminate comprising:
a) a first layer comprising at least a polyester, and
b) a second layer comprising at least a copolymer of ethylene and
methyl acrylate obtained by copolymerization of ethylene monomers and
methyl acrylate monomers in a continuous tubular reactor.
6. Process for preparing the laminate of claim 1, comprising extrusion
coating the second layer to the first layer at a temperature of at least 300ēC.
The prior art set forth below is relied upon by the Examiner as
evidence of obviousness:
White 2,953,551 Sep. 20, 1960
Deex 3,141,870 Jul. 21, 1964
Rebholz 4,387,126 Jun. 7, 1983
Pfleger 4,788,265 Nov. 29, 1988
Schmitz, "Ullmann's Encyclopedia of Industrial Chemistry," 5th Ed.,
Vol. A11, 85-95, 108-110 (1988)(Ullmann's).
Claims 1-6 are rejected under 35 U.S.C. § 103(a) as being
unpatentable over Rebholz in view of White or Deex or Pfleger and further
in view of Ullmann's.
The Examiner finds that Rebholz discloses a polyester layer laminated
to a copolymer of ethylene and methyl acrylate as required by claim 1 but is
silent as to whether the copolymer is obtained from a batch autoclave or a
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