High-performance resin for abrasive products
AssigneesSaint-Gobain Abrasives, Inc., Saint-Gobain Abrasifs
InventorsAnthony C. Gaeta, William C. Rice
Life of this patent
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Abstract
An abrasive product includes a plurality of abrasive particles and a resin cured with a polythiol group. A method of preparing the abrasive product includes contacting the plurality of abrasive particles with a curable composition that includes a resin and a polythiol group, and curing the curable composition to produce the abrasive product. A method of abrading a work surface includes applying an abrasive product to a work surface in an abrading motion to remove a portion of the work surface. A curable composition includes a formaldehyde resin and a polythiol group. A formaldehyde resin is crosslinked by a polythiol group. A method of crosslinking the formaldehyde resin includes reacting the polythiol group with the formaldehyde resin.
Claims21
A phenol formaldehyde crosslinked by a polythiol group, further comprising an epoxy acrylate,
- wherein the polythiol group is selected from trimethylolpropane tri(3-mercaptopropionate), trimethylolpropane tri(2-mercaptoacetate), pentaerythritol tetra(3-mercaptopropionate), pentaerythritol tetra(2-mercaptoacetate), polyol-3-mercaptopropionates, polyol-2-mercaptoacetates, polyester-3-mercaptopropionates, polyester-2-mercaptoacetates, and ethoxylated trimethylolpropane tri(3-mercaptopropionate), and
- wherein the polythiol group forms at least 10% by weight of the crosslinked resin, and
- wherein the phenol formaldehyde is a phenol formaldehyde resole.
A curable composition, comprising:
- a phenol-formaldehyde resole,
- a polythiol group selected from trimethylolpropane tri(3-mercaptopropionate), trimethylolpropane tri(2-mercaptoacetate), pentaerythritol tetra(3-mercaptopropionate), pentaerythritol tetra(2-mercaptoacetate), polyol-3-mercaptopropionates, polyol-2-mercaptoacetates, polyester-3-mercaptopropionates, polyester-2-mercaptoacetates, and ethoxylated trimethylolpropane tri(3-mercaptopropionate);
- trimethylolpropane triacrylate, or tris(2-hydroxy ethyl) isocyanurate triacrylate, or a mixture thereof;
- and
- aluminum trihydrate,
- wherein the polythiol group forms at least about 10% to about 50% by weight of the composition when crosslinked.
A method of crosslinking a phenol-formaldehyde resin, comprising reacting phenol-formaldehyde resole and a polythiol group selected from trimethylolpropane tri(3-mercaptopropionate), trimethylolpropane tri(2-mercaptoacetate), pentaerythritol tetra(3-mercaptopropionate), pentaerythritol tetra(2-mercaptoacetate), polyol-3-mercaptopropionates, polyol-2-mercaptoacetates, polyester-3-mercaptopropionates, polyester-2-mercaptoacetates, and ethoxylated trimethylolpropane tri(3-mercaptopropionate), wherein the polythiol group forms at least about 10% by weight of the crosslinked resin.
A phenol formaldehyde crosslinked by a polythiol group, further comprising an epoxy acrylate,
- wherein the polythiol group is selected from trimethylolpropane tri(3-mercaptopropionate), trimethylolpropane tri(2-mercaptoacetate), pentaerythritol tetra(3-mercaptopropionate), pentaerythritol tetra(2-mercaptoacetate), polyol-3-mercaptopropionates, polyol-2-mercaptoacetates, polyester-3-mercaptopropionates, polyester-2-mercaptoacetates, and ethoxylated trimethylolpropane tri(3-mercaptopropionate), and
- wherein the polythiol group forms at least 10% by weight of the crosslinked resin, and
- wherein the crosslinked resin transmits more visible light compared to the same resin without the polythiol group, or has an increased average storage modulus in a temperature range from about −150 degrees C. to 250 degrees C. compared to the same resin without the polythiol group, or has an increased average loss modulus in a temperature range from about −150 degrees C. to 250 degrees C. compared to the same resin without the polythiol group.
Dependencies are inferred from the claim text.