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1. WO2022003544 - SAFETY WINDOW FILM INCLUDING POLYURETHANE

Publication Number WO/2022/003544
Publication Date 06.01.2022
International Application No. PCT/IB2021/055776
International Filing Date 28.06.2021
IPC
C09J 7/25 2018.1
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
7Adhesives in the form of films or foils
20characterised by their carriers
22Plastics; Metallised plastics
25based on macromolecular compounds obtained otherwise than by reactions involving only carbon-to-carbon unsaturated bonds
C09J 7/29 2018.1
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
7Adhesives in the form of films or foils
20characterised by their carriers
29Laminated material
C09J 7/38 2018.1
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
7Adhesives in the form of films or foils
30characterised by the adhesive composition
38Pressure-sensitive adhesives
C09J 7/40 2018.1
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
7Adhesives in the form of films or foils
40characterised by release liners
B32B 27/40 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
27Layered products essentially comprising synthetic resin
40comprising polyurethanes
B32B 7/12 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
7Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
04Interconnection of layers
12using interposed adhesives or interposed materials with bonding properties
Applicants
  • 3M INNOVATIVE PROPERTIES COMPANY [US]/[US]
Inventors
  • GIRON, Lesbia E.
  • LYON, Keith R.
  • JENNEN, Jay M.
  • YANG, Zoong
Agents
  • OLOFSON, Jeffrey M.,
  • BLANK, Colene H.,
  • EHRICH, Dena M.
  • GEISE, C. Michael,
  • LEVINSON, Eric D.,
  • NOWAK, Sandra K.,
Priority Data
63/047,71102.07.2020US
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) SAFETY WINDOW FILM INCLUDING POLYURETHANE
(FR) FILM DE FENÊTRE DE SÉCURITÉ COMPRENANT UN POLYURÉTHANE
Abstract
(EN) Safety window films are described. In particular, safety window films including a substrate including polyurethane — the substrate having a first and second major surface, an optically clear pressure sensitive adhesive, and a polymeric liner are described. The first major surface of the substrate is the top surface of the safety film, and the polyurethane has a Shore hardness of less than 80 D. Such films may provide improved physical and optical performance over conventional safety window films, while being easier to install.
(FR) L’invention concerne des films de fenêtre de sécurité. En particulier, elle concerne des films de fenêtre de sécurité comprenant un substrat comprenant un polyuréthane – le substrat ayant une première et une seconde surface principale, un adhésif sensible à la pression optiquement transparent et une doublure polymère. La première surface principale du substrat est la face supérieure du film de sécurité, et le polyuréthane a une dureté Shore inférieure à 80 D. Ces films peuvent assurer des performances physiques et optiques améliorées par rapport à des films de fenêtre de sécurité classiques, tout en étant plus faciles à installer.
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