Disclosed herein is an artificial marble chip having a color gradient from a surface thereof to inside.

A power transmission belt (B) has a reinforcing fabric (13) covering a pulley contact surface thereof. A cover layer (15) adheres to the reinforcing fabric (13) to cover surfaces of fibers or yarns constituting the reinforcing fabric (13), and is exposed outside. The cover layer (15) contains crosslinked polyolefin particles (16) in which polyolefin molecules are crosslinked with each other.

Provided a wave-absorbing impregnation glue liquid, including: two-component epoxy resin, a solvent, a polyether siloxane, and a carbon powder; wherein a mass ratio of the two-component epoxy resin to the solvent is 1:31:5, a mass ratio of the two-component epoxy resin to the carbon powder is 3:16:1, and a mass fraction of the polyether siloxane in the wave-absorbing impregnation glue liquid is 0.05%0.2%. A wave-absorbing impregnation glue liquid, a wave-absorbing honeycomb and their preparation methods are further provided.

The present invention relates to a transfer polyester film. More particularly, the present invention relates to a transfer polyester film and a method for manufacturing the same, wherein the transfer polyester film has a coating layer with an excellent releasing property so that at the time of forming a hard coating layer in order to impart a surface gloss to an interior product, the transfer polyester film may be attached to a surface of the hard coating layer so as to allow the surface of the hard coating layer to be smoothly formed in a step of coating and curing a hard coating solution and may be removed after completely curing the hard coating layer.

The present invention relates to a transfer polyester film. More particularly, the present invention relates to a transfer polyester film and a method for manufacturing the same, wherein the transfer polyester film has a coating layer with an excellent releasing property so that at the time of forming a hard coating layer in order to impart a surface gloss to an interior product, the transfer polyester film may be attached to a surface of the hard coating layer so as to allow the surface of the hard coating layer to be smoothly formed in a step of coating and curing a hard coating solution and may be removed after completely curing the hard coating layer.

Provided are compositions comprising a block copolymer of the following formula: [A]-B-[Q], wherein [A] is a polymer that has an affinity for a substrate; B is a linking group comprising an optionally-substituted, polyvalent linking group having a molecular weight of no more than 1000 g/mole; and [Q] comprises a semi-crosslinked, ungelled polymer derived from copolymerization of an ethylenically unsaturated monomer with a poly-functional ethylenically unsaturated monomer. Such block copolymers are cross-linked via the [Q] segment, but not macroscopically gelled. The [Q] segment is hydrophilic and has a degree of polymerization in the range of about 10 to about 10,000. The [A] segment is located on at least one terminal end of said block copolymer, comprises between about 1 and about 200 repeating units. The block copolymer is associated, via the linear substrate associative segment with a surface comprising at least one hydrophobic site, such as a silicone hydrogel. The polymers may be incorporated into a formulation from which the silicone hydrogel is made or may be contacted with the silicone hydrogel post-formation.

Provided are compositions comprising a block copolymer of the following formula: [A]-B-[Q], wherein [A] is a polymer that has an affinity for a substrate; B is a linking group comprising an optionally-substituted, polyvalent linking group having a molecular weight of no more than 1000 g/mole; and [Q] comprises a semi-crosslinked, ungelled polymer derived from copolymerization of an ethylenically unsaturated monomer with a poly-functional ethylenically unsaturated monomer. Such block copolymers are cross-linked via the [Q] segment, but not macroscopically gelled. The [Q] segment is hydrophilic and has a degree of polymerization in the range of about 10 to about 10,000. The [A] segment is located on at least one terminal end of said block copolymer, comprises between about 1 and about 200 repeating units. The block copolymer is associated, via the linear substrate associative segment with a surface comprising at least one hydrophobic site, such as a silicone hydrogel. The polymers may be incorporated into a formulation from which the silicone hydrogel is made or may be contacted with the silicone hydrogel post-formation.

Composite structures including an ion-conducting material and a polymeric material (e.g., a separator) to protect electrodes are generally described. The ion-conducting material may be in the form of a layer that is bonded to a polymeric separator. The ion-conducting material may comprise a lithium oxysulfide having a lithium-ion conductivity of at least at least 10.sup.6 S/cm.

Composite structures including an ion-conducting material and a polymeric material (e.g., a separator) to protect electrodes are generally described. The ion-conducting material may be in the form of a layer that is bonded to a polymeric separator. The ion-conducting material may comprise a lithium oxysulfide having a lithium-ion conductivity of at least at least 10.sup.6 S/cm.

The sound-permeable membrane of the present invention is adapted, when placed over an opening for directing sound to or from a sound transducer, to prevent entry of foreign matters into the sound transducer through the opening while permitting passage of sound, the sound-permeable membrane including a non-porous film or a multilayer membrane including the non-porous film. The non-porous film is formed of oriented polytetrafluoroethylene. This sound-permeable membrane has an unconventional configuration and exhibits various excellent properties. At least one principal surface of the non-porous film may have a region subjected to a surface modification treatment.