C09J7/255

BIODEGRADABLE RESIN AND FILM PREPARED THEREBY

The present invention provides a biodegradable resin having an intrinsic viscosity of 1.0 dL/g or more, and having a loss rate of intrinsic viscosity of 10% or more after treatment at 70° C. and 85% RH for 6 hr. The present invention also provides a biodegradable resin containing 70 wt% or more of polylactic acid and having a relative biodegradation rate up to 90% or more within 12 months when the degradability in home composting at 28° C. is evaluated according to the conditions specified in ASTM D5338-15. The biodegradable resin has the characteristics of fast biodegradation speed and stable storage, has good mechanical properties, optical properties and barrier properties, can be applicable to various aspects including packaging and express transportation, and will quickly biodegrade into carbon dioxide, water and other small molecules without contamination to the environment at the end of service life. The present invention also provides a biodegradable resin film using the biodegradable resin and a product thereof, and a multilayer film containing the biodegradable resin film and a product thereof.

MULTILAYER PROTECTIVE FILM
20230193083 · 2023-06-22 ·

The present disclosure relates to a multilayer protective film that may include a multilayer component and a release liner component underlying the multilayer component. The multilayer component may have a first PET layer overlying a second PET layer. The multilayer protective film may further have a thickness ratio MPF.sub.T:RL.sub.T of not greater than about 14:1, where MPF.sub.T is equal to the thickness of the multilayer component and RL.sub.T is equal to the thickness of the release liner component.

Method for producing silicone-based adhesive

A method for producing a silicone-based adhesive is disclosed. The method comprises: (1) applying a silicone composition (I) to one surface of a peelable substrate, and then forming a silicone layer (I) by curing or drying the silicone composition (I); and (2) applying a silicone composition (II) to a surface of the silicone layer (I), and then forming the silicone-based adhesive by curing the silicone composition (II). The silicone composition (I) contains a silicone resin. The silicone composition (II) either does not contain the silicone resin or if contained, its content amount is lower than that in the silicone composition (I). The method is useful for producing a silicone-based adhesive with low peel resistance from a peelable substrate even with a low modulus.

Thermally softenable adhesive tape and method for jacketing elongated items, especially leads

An adhesive tape for jacketing an elongated item, more particularly cable sets, comprises a tapelike carrier which is characterized in that the tapelike carrier is provided on at least one side with a binder which is thermally softenable at a temperature of 50° C. to 100° C. and comprises a polycaprolactone.

Solvent free textile coating

The description relates to solvent free films and textiles that receive the solvent free films.

Modified resins and uses thereof

Modified thermoplastic hydrocarbon thermoplastic resins are provided, as well as methods of their manufacture and uses thereof in rubber compositions. The modified thermoplastic resins are modified by decreasing the relative quantity of the dimer, trimer, tetramer, and pentamer oligomers as compared to the corresponding unmodified thermoplastic resin polymers, resulting in a product that exhibits a greater shift in the glass transition temperature of the elastomer(s) used in tire formulations. This translates to better viscoelastic predictors of tire tread performance, such as wet grip and rolling resistance. The modified thermoplastic resins impart remarkable properties on various rubber compositions, such as tires, belts, hoses, brakes, and the like. Automobile tires incorporating the modified thermoplastic resins are shown to possess excellent results in balancing the properties of rolling resistance, tire wear, snow performance, and wet braking performance.

Adhesive film and method for manufacturing semiconductor device

An adhesive film of the present invention includes a base material layer and a self-peeling adhesive layer laminated therein. The base material layer has a thermal contraction percentage in a direction of flow (thermal contraction percentage in an MD direction) and a thermal contraction percentage in an orthogonal direction with respect to the direction of flow (thermal contraction percentage in a TD direction) that satisfy the following conditions: (1) after heating at 150° C. for 30 minutes, 0.4≦|thermal contraction percentage in MD direction/thermal contraction percentage in TD direction|≦2.5 and average of thermal contraction percentage in MD direction and thermal contraction percentage in TD direction≦2%, and (2) after heating at 200° C. for 10 minutes, 0.4≦|thermal contraction percentage in MD direction/thermal contraction percentage in TD direction|≦2.5 and average of thermal contraction percentage in MD direction and thermal contraction percentage in TD direction≧3%.

POLYOL COMPOSITION, ADHESIVE COATING MATERIAL, CURED OBJECT OBTAINED THEREFROM, ADHESIVE SHEET, AND SOLAR CELL MODULE

The invention provides an adhesive coating material which realizes excellent adhesive strength and moist-heat resistance at the time of bonding a solar cell sealing material and a base sheet, a polyol composition for the coating material, a cured object of the adhesive coating material, an adhesive sheet obtained by being coated with adhesive coating material, and a solar cell module using the sheet. As a polyol component of the adhesive coating material which forms an adhesive layer b in a back sheet E of the solar cell module illustrated in Figure, a hydroxyl group-containing (meth)acrylic resin (I) and unsaturated double bond-containing polyester polyol (II) are used as essential components.

Modified resins and uses thereof

Modified thermoplastic hydrocarbon thermoplastic resins are provided, as well as methods of their manufacture and uses thereof in rubber compositions. The modified thermoplastic resins are modified by decreasing the relative quantity of the dimer, trimer, tetramer, and pentamer oligomers as compared to the corresponding unmodified thermoplastic resin polymers, resulting in a product that exhibits a greater shift in the glass transition temperature of the elastomer(s) used in tire formulations. This translates to better viscoelastic predictors of tire tread performance, such as wet grip and rolling resistance. The modified thermoplastic resins impart remarkable properties on various rubber compositions, such as tires, belts, hoses, brakes, and the like. Automobile tires incorporating the modified thermoplastic resins are shown to possess excellent results in balancing the properties of rolling resistance, tire wear, snow performance, and wet braking performance.

Label construction for ablative laser marking

A label has a topcoat layer and a sacrificial layer. The topcoat layer has a first color having a first L-value and the sacrificial layer has a second color having a second L-value. The topcoat layer comprises at least one reflective pigment and a polymeric binder and the sacrificial layer comprises at least one infrared (IR) absorbing material and a polymeric binder. The first L-value is greater than the second L-value, and the total amount of the at least one reflective pigment is from 40 wt % to 80 wt %, based on the weight of the topcoat layer.