A composition is described comprising semicrystalline polylactic acid polymer; polyvinyl acetate polymer having a glass transition temperature (Tg) of at least 25° C.; plasticizer; and optionally amorphous polylactic acid polymer. In another embodiment the composition further comprises nucleating agent. Also described are films comprising the composition as well as articles, such as a tape or sheet, comprising the film described herein and a layer of pressure sensitive adhesive disposed on the film.

A high-performance ultra-thin double-sided adhesive tape, including a polyester film substrate and a high-performance adhesive coating coated on both sides of the polyester film. The high-performance adhesive coating includes the following parts by weight of each component uniformly mixed: 100-140 parts by weight of high-performance acrylic pressure sensitive adhesive, 15-20 parts by weight of curing agent, and 130-160 parts by weight of ethyl acetate. The thickness of the adhesive tape is 0.003-0.010 mm, with a good adhesion and a mechanical strength.

The invention relates to the technical field of adhesive tape and discloses an use of a high-performance ultra-thin double-sided adhesive tape in wireless charging, including a polyester film substrate, a high-performance adhesive coating coated on both sides of the polyester film, wherein the high-performance adhesive coating is composed of the following parts by weight of each component uniformly mixed: 100-140 parts by weight of high-performance acrylic pressure sensitive adhesive, 15-20 parts by weight of curing agent, and 130-160 parts by weight of ethyl acetate. The thickness of the adhesive tape is 0.003-0.010 mm, with a good adhesion and a mechanical strength.

A curable silicone adhesive composition comprising adhesion promoter is shown and described herein. The adhesion promoter is a silicon hydride material containing an aromatic based skeleton with another adhesion promoter to provide a silicone material that is curable at relatively low temperatures and shorter time and provides good adhesion to plastics and metal.

Disclosed is an adhesive film. The adhesive film has a silicone adhesive layer on one surface or both surfaces of a substrate film. A silicone adhesive material is used to form the silicone adhesive layer. The silicone adhesive material has 120 to 380% of an elongation at break (tensile speed of 300 mm/min, temperature of 25° C.) specified in JIS K 6251, and 1.8×10.sup.5 to 4.5×10.sup.5 Pa of a shear storage modulus (frequency of 10 Hz, temperature of 25° C.). The adhesive film generally has good wettability to the surface of an adherend and in general can be easily attached without creating air bubbles, to the extent that, even if air bubbles are created, the air bubbles can be easily dissipated. Further, even though the adhesive film is generally not easily peeled, peeling is generally possible with a small adhesive force during high speed peeling.

Disclosed are a double-sided adhesive film for bonding heterogeneous substrates, a laminated film, and a display device. The double-sided adhesive film for bonding heterogeneous substrates comprises: a first adhesive layer; and second adhesive layer which is disposed on the first adhesive layer and has a different adhesive force from that of the first adhesive layer to the same substrate.

An article and a method of making thereof. The article includes a polymeric film having a first major surface and a second major surface; and a plurality of discrete domains of an inkjet printing ink comprising a low adhesion backsize coating composition deposited on the first major surface of the polymeric film; wherein the low adhesion backsize coating composition has a viscosity between 1 to 30 cp at a printing temperature between 20 to 70 degrees Celsius.

An article and a method of making thereof. The article includes a polymeric film having a first major surface and a second major surface; a first plurality of domains of a first inkjet printing ink comprising a first low adhesion backsize coating composition deposited on the first major surface of the polymeric film; and a second plurality of domains of a second inkjet printing ink comprising a second low adhesion backsize coating composition deposited on the first major surface of the polymeric film; wherein the first and second low adhesion backsize coating composition has a viscosity between 1 to 30 cp at a printing temperature between 20 to 70 degrees Celsius; and wherein at least some of the first plurality of domains overlaps some of the second plurality of domains.

A screen splicing structure is provided. The screen splicing structure includes a substrate layer, a middle adhesive layer, and a surface layer. The substrate layer includes a first substrate and a second substrate. The second substrate is spliced with the first substrate, and a seam is formed at a splicing place. The surface layer and the middle adhesive layer are stacked. The surface layer covers the seam by bonding the middle adhesive layer and the substrate layer. The peeling strength of the surface layer and the substrate layer is greater than or equal to 1,000 gf/inch. A method for forming the screen splicing structure is also provided.

Films including solvent barriers and primer layers are described. In particular, films including a substrate, the substrate including polylactic acid, a primer layer disposed on the substrate, a barrier layer disposed on the surface of the primer layer opposite the substrate, and an adhesive layer disposed on a surface of the barrier layer opposite the primer layer. The barrier layer includes an amorphous aliphatic polyamide with a glass transition temperature of at least 40 #C. Such films can provide acceptable adhesion and barrier performance to polylactic acid based graphics film systems.