The present invention is a method to produce a biodegradable thermally induced shape memory polymer (SMP) based on poly(-caprolactone) (PCL) and ethyl cellulose (EC). In this synthesis method, after grafting the PCL on the linear EC, the PCL chains are end-functionalized with furan and maleimide moieties. The cross-linked network is prepared via Diels-Alder (DA) reaction between furanyl and N-maleimidyl PCL chains. The synthesized SMP demonstrates excellent shape memory properties at near body temperature (41 C.). Moreover, the polymer network is recyclable and re-processable, since the DA reaction is thermally reversible. The SMP of the present invention is well suited for numerous applications, especially in medical devices, given their excellent shape memory performance, tunable materials properties, body temperature-based stimulus, biocompatibility, and potential for biodegradation and resorption.

The present invention pertains to an ultraviolet-ray-curable organopolysiloxane composition containing: (A) (A-1) a straight-chain organopolysiloxane containing an alkenyl group, and (A-2) a three-dimensional-network-shaped organopolysiloxane resin containing an R.sup.1.sub.2R.sup.2SiO.sub.1/2 unit, an R.sup.1.sub.3SiO.sub.1/2 unit, an SiO.sub.2 unit, and an alkenyl group; (B) an organohydrogenpolysiloxane; (C) a photoactive platinum complex curing catalyst; and (D) an organopolysiloxane oligomer containing an R.sup.1.sub.2R.sup.2SiO.sub.1/2 unit or the R.sup.1.sub.2R.sup.2SiO.sub.1/2 unit and an R.sup.1.sub.3R.sup.2SiO.sub.1/2 unit, also containing an R.sup.1SiO.sub.3/2 unit, not containing an SiO.sub.2 unit, and also containing an alkenyl group. As a result, this ultraviolet-ray-curable organopolysiloxane composition retains high strength and does extremely well suppressing heat-induced expansion or contraction; hence, it is possible to transfer a pattern and print with high dimensional accuracy.

Disclosed is a ceramic laminate sheet comprising a ceramic sheet having a plurality of cracks and a polymer resin layer disposed on one side or both sides of the ceramic sheet, wherein the plurality of cracks pass through the ceramic sheet from one side to the other side thereof, the cracks divide the ceramic sheet into a plurality of pieces, grooves for formation of the cracks are not provided in one side and the other side of the ceramic sheet.

A polymer board with a cut edge is automatically advanced through a stationary, non-spinning sealing element that contacts and compresses the cut edge and provides a sealed and smooth surface to the cut edge.

A method for preparing a liquid crystal polymer film, comprising: (1) spinning a liquid crystal polymer into fibers, and maintaining the fibers for 0.1 hour to 36 hours at a temperature of 200 C. to 400 C. under a vacuum degree less than 500 Pa for later use; (2) weaving the fibers prepared in step (1) into cloth for later use; and (3) pressing the cloth prepared in step (2) into a film at a temperature of 200 C. to 400 C., and then stretching the film to obtain the liquid crystal polymer film. The liquid crystal polymer film prepared by the preparation method is good in mechanical property, and has a tensile strength that can exceed 170 MPa. The prepared liquid crystal polymer film is applied to a FPC, which makes the FPC have a dielectric constant less than 3, and a small dielectric loss tangent angle.

Apparatus for shaping a segment of material includes a forming member having a curved sidewall shaped complementary to a desired shape of the segment of material, and a conforming member having an applicator side and an engagement side disposed for engagement with the curved sidewall of the forming member. The conforming member includes a plurality of attachment regions disposed on the applicator side. Each attachment region is adapted to hold the segment of material on the conforming member. Engagement of the conforming member with the forming member causes the attachment regions to move from a first shape profile to a second shape profile, the second shape profile being the desired shape of the segment of material.