Back to results
US 11,248,102 B2Granted
Roll, method for manufacturing roll, and resin
AssigneeInoac Technical Center Co., Ltd.
InventorsTakayuki Suzuki, Minoru Ubukata, Takuya Ito
Life of this patent
Estimating the term…
Abstract
A roll excellent in abrasion resistance, which contains: a resin layer containing a first atom group having a plurality of sulfur atoms, a plurality of second atom groups having a carbon chain that has a plurality of carbon atoms arranged in a line and has an end bonded to any one of the plurality of sulfur atoms, and a plurality of third atom groups each of which has a urethane bond and is bonded to any one of the plurality of second atom groups; and a cylindrical foamed resin having an outer surface covered with the resin layer.
Claims10
A roll, comprising:
- a resin layer containing a first atom group having a plurality of sulfur atoms, a plurality of second atom groups having a carbon chain that has a plurality of carbon atoms arranged in a line and has an end bonded to any one of the plurality of sulfur atoms, and a plurality of third atom groups each of which has a urethane bond and is bonded to any one of the plurality of second atom groups;
- and
- a cylindrical foamed resin having an outer surface covered with the resin layer,
- wherein the second atom groups contain a (meth)acrylic bond represented by the following formula:
- wherein in the formula, R1 represents hydrogen or a methyl group, and
- the third atom groups are bonded to an ester bond of the (meth)acrylic bond directly.
3 more elements
The roll according to claim, 1, which is a retard roll used for a conveying unit of an image forming apparatus for forming an image on a print medium.
A roll, comprising:
- a resin containing a first atom group having a plurality of sulfur atoms, a plurality of second atom groups having a carbon chain that has a plurality of carbon atoms arranged in a line and has an end bonded to any one of the plurality of sulfur atoms, and a plurality of third atom groups each of which has a urethane bond and is bonded to any one of the plurality of second atom groups;
- and
- a cylindrical foamed resin impregnated with the resin in an open or opened porous cell structure on an outer surface,
- wherein the second atom groups contain a (meth)acrylic bond represented by the following formula:
- wherein in the formula, R1 represents hydrogen or a methyl group, and
- the third atom groups are bonded to an ester bond of the (meth)acrylic bond directly.
3 more elements
A roll, comprising:
- a resin layer containing a first atom group having a plurality of sulfur atoms, a plurality of second atom groups having a carbon chain that has a plurality of carbon atoms arranged in a line and has an end bonded to any one of the plurality of sulfur atoms, and a plurality of third atom groups each of which has a urethane bond and is bonded to any one of the plurality of second atom groups;
- and
- a cylindrical foamed resin having an outer surface covered with the resin layer,
- wherein the static friction coefficient of the roll is 1.5 or more, and
- the second atom groups contain a (meth)acrylic bond represented by the following formula:
- wherein in the formula, R1 represents hydrogen or a methyl group, and
- the third atom groups are bonded to an ester bond of the (meth)acrylic bond directly.
4 more elements
A method for manufacturing a roll, comprising:
- reacting a monomer having a (meth)acrylic acid group and a hydroxyl group, a polyol and an isocyanate having a plurality of isocyanate groups to generate a polymer having an unsaturated bond and a urethane bond,
- applying a raw material to the outer surface of a cylindrical foam, the raw material containing the polymer having an unsaturated bond and a urethane bond, a polyfunctional thiol having a plurality of thiol groups, and a photopolymerization initiator;
- and
- irradiating the applied raw material with an ultraviolet ray to cure the raw material to form a resin layer,
- wherein the resin layer contains a first atom group having a plurality of sulfur atoms from the polyfunctional thiol, a plurality of second atom groups from the monomer having a (meth)acrylic acid group and a hydroxyl group, the second atom groups having a carbon chain that has a plurality of carbon atoms arranged in a line and has an end bonded to any one of the plurality of sulfur atoms, and a plurality of third atom groups from the polyol and the isocyanate having a plurality of isocyanate groups, each of the third atom groups having a urethane bond and being bonded to any one of the plurality of second atom groups;
- the second atom groups contain a (meth)acrylic bond represented by the following formula:
- wherein in the formula, R1 represents hydrogen or a methyl group, and
- the third atom groups are bonded to an ester bond of the (meth)acrylic bond directly.
5 more elements
Dependencies are inferred from the claim text.