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Patent Agency Ranking
公开(公告)号：US20190099913A1
公开(公告)日：2019-04-04
申请号：US16103387
申请日：2018-08-14
Applicant: Koppers Performance Chemicals Inc.
Inventor： Md Sayful Islam , Jun Zhang
Abstract: Disclosed herein are compositions and methods for treating wood to give it a desirable color that is durable over time, while at the same time rendering the wood resistant to fungal decay and insect attack. The wood may be pressure treated in a two-step process whereby the wood is first treated with a wood preservation composition, and then treated with a composition comprising pigments, or vice versa. Alternatively, the wood may be simultaneously treated with a composition comprising a wood preservative and a composition comprising pigments.
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公开(公告)号：US11951649B2
公开(公告)日：2024-04-09
申请号：US17854196
申请日：2022-06-30
Applicant: Koppers Performance Chemicals, Inc.
Inventor： Md Sayful Islam , Jun Zhang
CPC classification number: B27K3/22 , C07C51/412
Abstract: A method for producing copper carboxylate, a wood preservative composition comprising copper carboxylate, and a wood product produced therefrom are provided. The method comprises combining a hydrocarbon solvent, a copper compound, and carboxylic acid and contacting the copper compound with the carboxylic acid in the presence of the hydrocarbon solvent to form a reaction product comprising copper carboxylate.
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公开(公告)号：US20240278455A1
公开(公告)日：2024-08-22
申请号：US18594581
申请日：2024-03-04
Applicant: Koppers Performance Chemicals, Inc.
Inventor： Md Sayful Islam , Jun Zhang
CPC classification number: B27K3/22 , C07C51/412
Abstract: A method for producing copper carboxylate, a wood preservative composition comprising copper carboxylate, and a wood product produced therefrom are provided. The method comprises combining a hydrocarbon solvent, a copper compound, and carboxylic acid and contacting the copper compound with the carboxylic acid in the presence of the hydrocarbon solvent to form a reaction product comprising copper carboxylate.
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公开(公告)号：US20220332008A1
公开(公告)日：2022-10-20
申请号：US17854196
申请日：2022-06-30
Applicant: Koppers Performance Chemicals, Inc.
Inventor： Md Sayful Islam , Jun Zhang
Abstract: A method for producing copper carboxylate, a wood preservative composition comprising copper carboxylate, and a wood product produced therefrom are provided. The method comprises combining a hydrocarbon solvent, a copper compound, and carboxylic acid and contacting the copper compound with the carboxylic acid in the presence of the hydrocarbon solvent to form a reaction product comprising copper carboxylate.
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公开(公告)号：US11072086B2
公开(公告)日：2021-07-27
申请号：US16103387
申请日：2018-08-14
Applicant: Koppers Performance Chemicals Inc.
Inventor： Md Sayful Islam , Jun Zhang
IPC: B27K5/00 , B27K5/02 , B27K3/00 , C09D15/00 , C09C1/00 , B27K3/22 , B27K3/52 , B27K3/26 , B27K3/02 , B27K3/08 , B27K3/34
Abstract: Disclosed herein are compositions and methods for treating wood to give it a desirable color that is durable over time, while at the same time rendering the wood resistant to fungal decay and insect attack. The wood may be pressure treated in a two-step process whereby the wood is first treated with a wood preservation composition, and then treated with a composition comprising pigments, or vice versa. Alternatively, the wood may be simultaneously treated with a composition comprising a wood preservative and a composition comprising pigments.
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