C09J2203/306

PRESSURE-SENSITIVE ADHESIVE SHEET FOR SURFACE PROTECTION

An objective is to provide a surface protective PSA sheet that has well-balanced bonding strength for various adherends differing in polarity and a capability to suppress peeling and lifting as well as an ability to inhibit touch-up paint peeling and an increase in bonding strength with time. The surface protective PSA sheet having a PSA layer and a resin substrate supporting the PSA layer, characterized by satisfying the following conditions (a1), (a1-1) and (c1) has well-balanced bonding strength for various adherends differing in polarity and is capable of suppressing peeling and lifting and inhibiting touch-up paint peeling and an increase in boding strength with time. (a1) The PSA layer is formed from a PSA composition comprising a (meth)acrylic copolymer and a tackifier, the tackifier accounting for 1.0-30 parts by mass of the PSA composition with the (meth)acrylic copolymer being 100 parts by mass. (a1-1) The (meth)acrylic copolymer comprises 0.1-2.8% by mass functional group-containing structural unit, the structural unit including at least one species of functional groups selected from the group consisting of a carboxyl group and a salt thereof as well as a sulfo group and a salt thereof. (c1) The surface protective PSA sheet has tensile moduli of elasticity of 180-330 MPa in both MD and TD.

Paint Film Appliques with Reduced Defects, Articles, and Methods

In-situ polymerized polymer film facilitates improved paint film appliques with reduced defects. The paint film appliques comprise the in-situ polymerized polymer film as a carrier layer and at least one color layer assembled as a laminate, optionally further comprising at least one topcoat layer on one major surface of the laminate and an adhesive layer on the other major surface of the laminate.

TRANSFER TAPE WITH FLUID EGRESS CHANNELS

An adhesive transfer tape having an adhesive layer having at least one major surface that includes an irregular pattern of grooves, allowing for fluid egress.

INFRARED REFLECTIVE WRAP FILM
20210122943 · 2021-04-29 ·

Provided are conformable infrared reflective wrap films, film forming compositions, methods of making, and uses of such wrap films. In preferred embodiments the conformable film comprises a polymer selected from poly(vinyl chloride) (PVC), polyurethane, polyester, and polyethylene terephthalate (PET), in particular PVC is preferred. The conformable infrared reflective wrap film is adhered to the exterior surface of a vehicle.

LAMINATED FILM
20210138769 · 2021-05-13 · ·

A laminated film preferable as a PPF material. The laminated film is formed, in which a coating layer formed of a cured material of a photopolymerizable coating liquid, a base material layer formed of thermoplastic polyurethane, and an adhesive layer formed of a pressure sensitive adhesive are formed in contact with each other in the order, the photopolymerizable coating liquid is composed of component (a): urethane acrylate and component (b): photopolymerizable acrylic compounds having no urethane unit and containing a fluorine atom, and component (a) and component (b) are mixed at a proportion of (a): 20% by weight or more and less than 50% by weight and (b): 50% by weight or more and less than 80% by weight, based on 100 parts by weight of the photopolymerizable coating liquid.

EXTRUDED POLYURETHANE SURFACE FILMS

Various embodiments disclosed relate to a surfacing film. The surfacing film includes a base layer. The base layer includes a thermoplastic polyurethane film comprising a reaction product of a reaction mixture of a diisocyanate, a polyester polyol having a melting temperature of at least about 30° C.; and a diol chain extender. There are many reasons to use the surfacing film including easier and more cost effective manufacturing of the surfacing film by directly extruding the base layer by mixing the reaction mixture in an extruder. Another reason to use the surfacing film is that the film has improved resistance to discoloration. Another reason to use the film is that the film shows good toughness.

MULTILAYER FILM AND MOLDED BODY PROVIDED WITH SAME

A multilayer film and a decorative film, each of which is excellent in chipping resistance, exhibits favorable adhesive properties to a variety of resin materials, such as polypropylene and ABS, and a molded body provided with such a film. The multilayer film includes three layers of an impact absorption layer (a), a base material layer (b), and a pressure sensitive adhesive layer (c) disposed in this order, wherein a thermoplastic polymer composition constituting the impact absorption layer (a) is composed of at least one block copolymer containing a polymer block (X) containing a structural unit derived from an aromatic vinyl compound and a polymer block (Y) containing a structural unit derived from a conjugated diene compound, or a hydrogenated product thereof; and has a loss tangent (tan δ) at 11 Hz in a range of −50 to −20° C. of 3×10.sup.−2 or more.

COATING LIQUID AND ARTICLE USING SAME
20210087434 · 2021-03-25 · ·

[Problem] To provide a coating film which is capable of maintaining good water repellency and antifouling properties. [Solution] A photopolymerizable coating composition which contains, as photopolymerizable components, a urethane (meth)acrylate (component (a)) and a photopolymerizable (meth)acrylic compound (component (b)), and which is configured such that: from 1% by weight to 50% by weight (inclusive) of the component (a) and from 50% by weight to 99% by weight (inclusive) of the component (b) relative to the total amount of the photopolymerizable components are mixed; and the component (b) contains a photopolymerizable acrylic compound (component (b1)) which has a structural unit derived from a fluorosilsesquioxane derivative represented by formula (1), a reactive silicone (component (b2)) and a photopolymerizable acrylic compound (component (b3)) which has no urethane unit, no fluorine atom and no Si atom.

Multilayer Coating for Covering Vehicle Body Parts

In a first aspect, the present invention concerns a multilayer coating for covering vehicle body parts, comprising a polymeric facestock layer (3) which is located between a polymeric top coat layer 4 and a polymeric adhesive layer (2), the top coat layer (4) comprising at least partially cross-linked polyurethane, wherein the at least partially cross-linked polyurethane is the reaction product of a composition comprising a first part and a second part, wherein: the first part comprises between 0.1 and 99.9 wt. % of solvent- or waterborne thermally curable polyurethane precursor material, as based on the total weight of said composition; and the second part comprises between 0.1 and 99.9 wt. % of UV-curable polyurethane precursor material, as based on the total weight of said composition.

The invention further pertains to a method for manufacturing a multilayer coating for covering vehicle body parts.

PROTECTIVE FILM

A protective film 10 of the present invention includes a base material layer and a pressure sensitive adhesive layer, and is used by being attached to a resin substrate 21 at the time of performing heat bending on the resin substrate 21. The pressure sensitive adhesive layer contains a polyolefin having a melting point of lower than 125 C. The base material layer has a first layer which contains a polyolefin having a melting point of 150 C. or higher, and a second layer which contains an adhesive resin. In a case of heating the protective film 100 having such a configuration, in a state of being interposed between two attaching substrates which are formed of polycarbonate, at 145 C. for 30 minutes, peeling off one attaching substrate on the side of the pressure sensitive adhesive layer at 25 C., and then viewing a surface of the one attaching substrate in a plan view, a residual ratio of an area where the pressure sensitive adhesive layer remains is 5% or less.