[특허]Activatable adhesive, labels, and related methods

Avery Dennison Corporation

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특허 상세정보

MyON담기

내보내기 페이스북 공유 트위터 공유 카카오톡 공유

Activatable adhesive, labels, and related methods

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B32B-037/06 C09J-133/00 C09J-007/02 G09F-003/10 G09F-003/02
출원번호	US-0892498 (2013-05-13)
등록번호	US-9181462 (2015-11-10)
발명자 / 주소	Kian, Kourosh Lee, Souphong Hseih, Dong-Tsai Lenkl, Johannes Li, Kai
출원인 / 주소	Avery Dennison Corporation
대리인 / 주소	Avery Dennison Corporation
인용정보	피인용 횟수 : 1 인용 특허 : 100

초록

An activatable adhesive that is formulated to readily absorb energy from a given radiation source, an activatable adhesive label that incorporates such an activatable adhesive, a system for activating such labels, and related methods and uses are described. The activatable adhesive includes a plasticizer, a tackifier, and an adhesive base polymer that includes butyl acrylate, styrene, methyl methacrylate, methacrylic acid, and acrylic acid.

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1. A method for applying a label with an activatable adhesive to an item, the method comprising: providing the label, wherein the label has a first surface that is coated with an activatable, polymerized adhesive that includes: i. an adhesive base polymer including butyl acrylate, styrene, methyl methacrylate, methacrylic acid, acrylic acid, at least one multifunctional monomer, and at least one chain transfer agent,ii. a plasticizer, andiii. a tackifier, wherein the adhesive base polymer has a weight average molecular weight within a range of from 10,000 Daltons to 150,000 Daltons;providing the item having a second surface;providing a source of energy that is configured to output radiant energy;exposing the first surface of the label to the radiant energy that is output from the source of energy thereby melting the plasticizer and lowering the glass transition temperature Tg of the base polymer so the first surface of the label becomes tacky; andcontacting the first surface of the label with the second surface of the item. 2. The method according to claim 1, wherein the label is preprinted with indicia. 3. The method according to claim 1, further comprising: providing a printer that is configured to print an image on the label; andprinting the image on the label before the step of exposing the label to the radiant energy. 4. The method according to claim 1, wherein: the label includes a facestock layer and an adhesive layer;the adhesive layer includes the adhesive base polymer, the plasticizer, and the tackifier; andthe facestock layer is not discolored after the exposure of the label to the radiant energy. 5. The method according to claim 1, wherein: the step of providing the label includes providing a plurality of labels;the step of providing the item includes providing a plurality of items;the step of exposing the label includes exposing at least one of the plurality of the labels to the radiant energy; andthe step of contacting the label in contact with the item includes contacting one of the plurality of labels with one of the plurality of items at a rate greater than approximately 60 labels per minute. 6. The method according to claim 5, wherein the step of contacting the label with the item includes contacting one of the plurality of labels with one of the plurality of items at a rate of less than or equal to approximately 1,000 labels per minute. 7. The method according to claim 1, wherein the activatable adhesive comprises 20% to 35% by weight of the adhesive base polymer, 50% to 75% by weight of the plasticizer, and 5% to 20% by weight of the tackifier. 8. The method according to claim 1, wherein the activatable adhesive comprises 24% to 30% by weight of the adhesive base polymer, 56% to 68% by weight of the plasticizer, and 8% to 16% by weight of the tackifier. 9. The method according to claim 1, wherein the adhesive base polymer comprises 5% to 50% by weight of the butyl acrylate, 20% to 85% by weight of the styrene, 1% to 35% by weight of the methyl methacrylate, 0.5% to 5% by weight of the methacrylic acid, 0.5% to 5% by weight of the acrylic acid, up to 5% by weight of the at least one multifunctional monomer, and up to 5% by weight of the at least one chain transfer agent. 10. The method according to claim 1, wherein the adhesive base polymer comprises 12% to 48% by weight of the butyl acrylate, 23% to 78% by weight of the styrene, 3% to 30% by weight of the methyl methacrylate, 1% to 2% by weight of the methacrylic acid, 1% to 3% by weight of the acrylic acid, 0.5% to 2.5% by weight of the at least one multifunctional monomer, and 1.0% to 4.0% by weight of the at least one chain transfer agent. 11. The method according to claim 1, wherein the adhesive base polymer comprises 9% to 14% by weight of the butyl acrylate, 68% to 80% by weight of the styrene, 2% to 6% by weight of the methyl methacrylate, 1% to 2% by weight of the methacrylic acid, 1% to 2% by weight of the acrylic acid, 0.5% to 2.5% by weight of the at least one multifunctional monomer, and 1.0% to 4.0% by weight of the at least one chain transfer agent. 12. The method according to claim 1, wherein the at least one chain transfer agent comprises n-dodecyl mercaptan, tert-nonylmercaptan, isooctyl 3-mercaptopropionate, or a combination thereof. 13. The method according to claim 1 wherein the adhesive base polymer has a weight average molecular weight within a range of from 15,000 Daltons to 100,000 Daltons. 14. The method according to claim 1 wherein the adhesive base polymer has a weight average molecular weight within a range of from 20,000 Daltons to 40,000 Daltons. 15. A method for activating a label, the method comprising: providing the label wherein the label has a first surface that is coated with an activatable, polymerized adhesive, the activatable adhesive including: i. an adhesive base polymer including butyl acrylate, styrene, methyl methacrylate, methacrylic acid, and acrylic acid,ii. a plasticizer, andiii. a tackifier, wherein the adhesive base polymer has a weight average molecular weight within a range of from 10,000 Daltons to 150,000 Daltons;providing a source of energy configured to output radiant energy; andexposing the label to the radiant energy that is output from the source of energy thereby melting the plasticizer and lowering the glass transition temperature Tg of the base polymer so the first surface of the label becomes tacky. 16. The method according to claim 15, wherein: the label includes a facestock layer and an adhesive layer;the adhesive layer includes the adhesive base polymer, the plasticizer, and the tackifier; andthe facestock layer is not discolored after the exposure of the label to the radiant energy. 17. The method according to claim 15, further comprising: providing a printer configured to print an image on the label; andprinting the image on the label before the step of exposing the label to the radiant energy. 18. The method according to claim 15, wherein the activatable adhesive comprises 20% to 35% by weight of the adhesive base polymer, 50% to 75% by weight of the plasticizer, and 5% to 20% by weight of the tackifier. 19. The method according to claim 15, wherein the activatable adhesive comprises 24% to 30% by weight of the adhesive base polymer, 56% to 68% by weight of the plasticizer, and 8% to 16% by weight of the tackifier. 20. The method according to claim 15, wherein the adhesive base polymer comprises 5% to 50% by weight of the butyl acrylate, 20% to 85% by weight of the styrene, 1% to 35% by weight of the methyl methacrylate, 0.5% to 5% by weight of the methacrylic acid, 0.5% to5% by weight of the acrylic acid, 0% to 5% by weight of at least one multifunctional monomer, and 0% to 5% by weight of at least one chain transfer agent. 21. The method according to claim 15, wherein the adhesive base polymer comprises 12% to 48% by weight of the butyl acrylate, 23% to 78% by weight of the styrene, 3% to 30% by weight of the methyl methacrylate, 1% to 2% by weight of the methacrylic acid, 1% to 3% by weight of the acrylic acid, 0.5% to 2.5% by weight of at least one multifunctional monomer, and 1.0% to 4.0% by weight of at least one chain transfer agent. 22. The method according to claim 15, wherein the adhesive base polymer comprises 9% to 14% by weight of the butyl acrylate, 68% to 80% by weight of the styrene, 2% to 6% by weight of the methyl methacrylate, 1% to 2% by weight of the methacrylic acid, 1% to 2% by weight of the acrylic acid, 0.5% to 2.5% by weight of at least one multifunctional monomer, and 1.0% to 4.0% by weight of at least one chain transfer agent.

인용문헌 (100)

이 특허를 인용한 특허 (1)

Naik, Kirit; Goss, Patrick; Saxberg, Tom; Mitchell, Noel; Pietari, Ismo, Method for labeling items with labels comprising a clear face layer and a clear adhesive layer.

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Activatable adhesive, labels, and related methods

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Activatable adhesive, labels, and related methods

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