Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
67 words
An elastic roll, comprising: an elastic body layer formed in a thickness not less than 200 µm on a metal core bar; and a covering layer with a release property formed in a thickness ranging from 3 µm to 200 µm on the surface of said elastic body layer, said covering layer being formed of a composite material composed of fibrillated polytetrafluoroethylene and elastomer having releasing properties.
Claim 2
Dependent Claim
29 words
An elastic roll according to Claim 1, wherein said elastic body layer is formed of one selected from the group consisting of oil-resistant silicone rubber, fluororubber, and fluoro-silicone rubber.
Claim 3
Dependent Claim
37 words
An elastic roll according to Claim 1, wherein said covering layer is composed of expanded porous polytetrafluoroethylene film, and elastomer having a release property and filled in voids of said expanded porous polytetrafluoroethylene by soaking and hardening.
Claim 4
Dependent Claim
21 words
An elastic roll according to Claim 1 or Claim 2, wherein said elastomer is silicone rubber of normal temperature vulcanizing type.
Claim 5
Dependent Claim
19 words
An elastic roll according to Claim 1 or Claim 2, wherein said elastomer is either fluoro-silicone rubber or fluororubber.
Claim 6
Dependent Claim
89 words
An elastic fixing roll, comprising: a heat-conductive elastic body layer formed of heat-resistant elastomer in a thickness not less than 200 µm on a metal core bar; an oil-resistant layer formed of oil-resistant elastomer in a layer thickness ranging from 3 µm to 200 µm on the said elastic body layer; and a covering layer having a release property and formed of a composite material composed of fibrillated polytetrafluoroethylene and elastomer with a release property in a thickness ranging from 3 µm to 200 µm on said oil-resistant layer.
Claim 7
Dependent Claim
31 words
An elastic fixing roll according to Claim 6, wherein said heat-conductive elastic body layer is composed of one selected from the group consisting of heat-resistant silicone rubber, fluororubber, and fluoro-silicone rubber.
Claim 8
Dependent Claim
38 words
An elastic fixing roll according to Claim 6, wherein said covering layer is composed of expanded porous polytetrafluoroethylene film, and elastomer having a release property filled in voids of said expanded porous polytetrafluoroethylene film by soaking and hardening.
Claim 9
Dependent Claim
22 words
An elastic fixing roll according to Claim 6 or Claim 7, wherein said elastomer is silicone rubber of normal temperature vulcanizing type.
Claim 10
Dependent Claim
20 words
An elastic fixing roll according to Claim 6 or Claim 7, wherein said elastomer is either fluoro-silicone rubber or fluororubber.