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公开(公告)号：US20230084796A1
公开(公告)日：2023-03-16
申请号：US17793477
申请日：2021-01-18
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Weina Wang , Lu Shen , Yunshu Zhang , Yu Che , Panpan Lin , Heng Liu , Xiaohai Sheng , Shupeng Wu , Xiangming Yang
IPC: C09J7/38 , C09J7/24 , C09J7/40 , C09J11/06 , C09J133/10
Abstract: The present invention provides a pressure-sensitive adhesive composition, including: an acrylic copolymer and a crosslinking agent. The acrylic copolymer is a reaction product of a mixture of the following monomers: a first alkyl (meth)acrylate, an alkyl group in the first alkyl (meth)acrylate having at least 6 carbon atoms; a second alkyl (meth)acrylate, an alkyl group in the second alkyl (meth)acrylate having 1 to 5 carbon atoms; and a vinyl carboxylic acid, the weight ratio of the vinyl carboxylic acid to the mixture being 4% to 5%. The crosslinking agent is an organometallic chelating agent. The weight ratio of the organometallic chelating agent to the mixture is 0.05% to 0.25%. The pressure-sensitive adhesive composition does not contain an effective amount of a tackifier. The present invention further provides a pressure-sensitive adhesive solution, a pressure-sensitive adhesive tape, and a method for preparing the same. The pressure-sensitive adhesive of the present invention is a removable pressure-sensitive adhesive, and is applicable in hot weather and cold weather, and the adhesiveness of the pressure-sensitive adhesive does not decrease over time.
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公开(公告)号：US12234395B2
公开(公告)日：2025-02-25
申请号：US17793477
申请日：2021-01-18
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Weina Wang , Lu Shen , Yunshu Zhang , Yu Che , Panpan Lin , Heng Liu , Xiaohai Sheng , Shupeng Wu , Xiangming Yang
Abstract: The present invention provides a pressure-sensitive adhesive composition, including: an acrylic copolymer and a crosslinking agent. The acrylic copolymer is a reaction product of a mixture of the following monomers: a first alkyl (meth)acrylate, an alkyl group in the first alkyl (meth)acrylate having at least 6 carbon atoms; a second alkyl (meth)acrylate, an alkyl group in the second alkyl (meth)acrylate having 1 to 5 carbon atoms; and a vinyl carboxylic acid, the weight ratio of the vinyl carboxylic acid to the mixture being 4% to 5%. The crosslinking agent is an organometallic chelating agent. The weight ratio of the organometallic chelating agent to the mixture is 0.05% to 0.25%. The pressure-sensitive adhesive composition does not contain an effective amount of a tackifier. The present invention further provides a pressure-sensitive adhesive solution, a pressure-sensitive adhesive tape, and a method for preparing the same. The pressure-sensitive adhesive of the present invention is a removable pressure-sensitive adhesive, and is applicable in hot weather and cold weather, and the adhesiveness of the pressure-sensitive adhesive does not decrease over time.
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