Adhesive articles with improved air egress and methods of making the same
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C09J-005/00
C09J-007/02
B44C-001/17
B32B-031/20
B41M-003/18
출원번호
US-0742646
(2000-12-21)
발명자
/ 주소
Hannington, Michael
Iyer, Pradeep
출원인 / 주소
Avery Dennison Corporation
대리인 / 주소
Renner, Otto, Boisselle & Sklar, LLP
인용정보
피인용 횟수 :
26인용 특허 :
35
초록▼
This invention relates to an adhesive article which provides air egress. Air egress is provided by supplying a route, such as areas of no initial adhesion for the air to flow out from under the construction. The invention relates to an adhesive article comprising a facestock having a front surface a
This invention relates to an adhesive article which provides air egress. Air egress is provided by supplying a route, such as areas of no initial adhesion for the air to flow out from under the construction. The invention relates to an adhesive article comprising a facestock having a front surface and a back surface, a continuous layer of adhesive having an upper surface and a lower surface wherein the upper surface of the adhesive layer is adhered to the back surface of the facestock, and a plurality of spaced-apart non-adhesive material which is in contact with the lower surface of the adhesive layer wherein the lower surface of the adhesive layer has a Sheffield roughness of at least about 10 and the adhesive article provides air egress. The invention also relates to methods of preparing the adhesive articles. These articles have usefulness as industrial graphics images, as well as decorative coverings, etc. The articles provide air egress and optionally repositionability and slideability.
대표청구항▼
This invention relates to an adhesive article which provides air egress. Air egress is provided by supplying a route, such as areas of no initial adhesion for the air to flow out from under the construction. The invention relates to an adhesive article comprising a facestock having a front surface a
This invention relates to an adhesive article which provides air egress. Air egress is provided by supplying a route, such as areas of no initial adhesion for the air to flow out from under the construction. The invention relates to an adhesive article comprising a facestock having a front surface and a back surface, a continuous layer of adhesive having an upper surface and a lower surface wherein the upper surface of the adhesive layer is adhered to the back surface of the facestock, and a plurality of spaced-apart non-adhesive material which is in contact with the lower surface of the adhesive layer wherein the lower surface of the adhesive layer has a Sheffield roughness of at least about 10 and the adhesive article provides air egress. The invention also relates to methods of preparing the adhesive articles. These articles have usefulness as industrial graphics images, as well as decorative coverings, etc. The articles provide air egress and optionally repositionability and slideability. as to repair the die after damage thereto. 5. The process of claim 1, wherein said organic peroxide is ethylmethylketone peroxide. 6. The process of claim 1, wherein said silicone rubber by addition (SRBA)catalyst is tetrabutyltitanate. 7. A process to obtain a die that does not need end finishing in its construction and that can be used in absence of additional demolding agents, the process comprising the steps of: i) making a homogeneous blend by treating a starting volume of silicone rubber by addition (SRBA) with a volume of water that consists of about 1 percent to about 8 percent of the SRBA starting volume at a temperature that ranges from about 60° C. to about 80° C.; ii) adding to the blend of step i) a volume of silicone oil of about 1 percent to about 10 percent of the SRBA starting volume, while homogenizing; iii) adding to the blend of step ii) a volume of organic peroxide of about 0.2 percent to about 4 percent regarding the SRBA starting volume, while homogenizing; and iv) adding to the blend of step iii) a volume of acetic acid of about 0.2 percent and to about 4 percent regarding the SRBA starting volume, while homogenizing to produce a modified SRBA; v) heating the modified SRBA at a temperature ranging from 30° to 70° C. while mechanically stirring the modified SRBA, and adding a suitable catalyst in a suitable amount regarding the used SRBA; vi) applying said modified SRBA of step v) over a pattern, masterpiece, or form to be reproduced controlling the thickness, with the aim of forming a first catalyzed SRBA layer; vii) applying a second catalyzed SRBA layer over the surface of the SRBA of step vi), once the first layer is solidified; viii) applying a transitional binding material over the second layer before the second layer coagulates; ix) allowing the second layer of the SRBA to coagulate and to remove the transitional binding material that is not adhered from said layer; and x) binding the uncovered face of the binding transitional material adhered to second layer of the coagulated SRBA to a substratum by applying an epoxy resin to said transitional binding material; the substratum being a member selected from the group consisting of a plastic laminate and a metal, said substratum being the link between the first catalyzed SRBA layer of the die and the injection, projection or molding machine wherein said die is used. 8. The process of claim 7, that comprises applying the silicone rubber by addition (SRBA) by means of an electrostatic sprinkled kit. 9. The process of claim 7, that comprises heating the silicone rubber by addition (SRBA) at a temperature that ranges from about 50° C. to about 70° C. 10. The process of claim 7, wherein the transitional material used for adherence includes alveolar materials, and the alveolar materials are obtained by milling and screening with lay wire meshes of about 0.6 mm to about 0.8 mm. 11. The process of claim 10, wherein the transitional material used for adherence is pumice stone. 12. The process according to claim 7, further including the step of eliminating the first SRBA layer and the second catalyzed SRBA layer of the die after these two layers have become damaged so as to repair the die after damage thereto. 13. The process of claim 7, wherein said silicone rubber by addition (SRBA) catalyst is tetrabutyltitanate. 14. The process of claim 7, wherein said organic peroxide is ethylmethylketone peroxide. 15. The process of claim 7, wherein said transitional material used for adherence is selected from the group consisting of open cell alveolar materials, synthetic fibers and natural fibers. 16. The process of claim 15, wherein said open cell alveolar materials are selected from the group consisting of pumice stone and boron-silicates of volcanic origin. 17. The process of claim 15, wherein said synthetic fibers are selected from the group consisting of glass, kevlar fibers and carbon fibers. 18. The process of claim 15, wherein said natural fibers are selected from the group consisting of hemp fibers and jute fibers. s. 8. The non-resorbable device of claim 7, having a size and shape which render the device suitable for implantation in a human knee joint to replace a damaged meniscus, wherein the device: a. has a first smooth and lubricious surface designed to articulate against femoral cartilage, b. has a second smooth and lubricious surface designed to articulate against tibial cartilage, and, c. has a peripheral surface designed to enable secure anchoring of the device to tissue surrounding a knee joint. 9. The device of claim 7, having a size and shape which render the
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