105results about How to "Excellent thermoformability" patented technology

The laminate sheet of polylactic acid-based resin of the present invention is a laminate sheet comprising Layer A and Layer B consisting of polylactic acid-based resin composition and both of said Layer A and said Layer B contain a nucleating agent, and said Layer A and said Layer B contain said nucleating agent in a specific amount. The present invention makes it possible to obtain a thermoformed plastic excellent in heat resistance and transparency, and further, provides a laminate sheet of polylactic acid-based resin excellent in thermoformability.

The present invention describes thermoformable coextruded film suitable for use in packaging applications having at least a first polymeric layer serving as an outermost exterior-film layer and comprising a cycloaliphatic polyester, an aromatic polyester or blends thereof; a second polymeric layer serving as a thermoforming-assist layer and comprising a polyolefin; and a third polymeric layer serving as an innermost exterior-film layer and comprising a heat-sealing polyolefinic material. The films of the present invention are oxygen-permeable in that they exhibit an oxygen transmission rate of between 2-1000 cm³/100 in²/24 h.atm.

The thermoforming method of the present invention is a method that includes thermoplasticizing a portion, including a part 2 which is molded with molds, of a thermoforming sheet 1 in which at least one or more thermoplastic resin layers (A) and a decorative layer (B) were laminated, at a temperature range of (Tg (A)−30)° C. to (Tg (A)+10)° C. with respect to the glass transition temperature (Tg (A)) of the thermoplastic resin layer (A); subsequently clamping by using a pair of frame clamps 14 and 24 both sides of a perimeter around the portion 2, which is molded with the molds, of the sheet 1; expanding the thermoplasticized portion between one mold and the frame clamps by pressing a portion of the one mold 20 onto one surface of the thermoplasticized portion; subsequently bringing the other mold 10 into contact with the thermoplasticized portion from the side opposite to the surface of the thermoplasticized portion that the one mold is in contact with; and mold-clamping the thermoplasticized portion with the one mold 10 and the other mold 20 to mold the thermoforming sheet. According to the present invention, forming at a low temperature in which the design properties can not be adversely affected can be achieved, and formed articles in which wrinkles or the like are not generated can be obtained.

The invention discloses a low lead and boron easy-cutting antimony brass alloy and a preparation method thereof. The chemical components of the low lead brass alloy are that: 55-65wt percent of copper, 0.4-1.2wt percent of antimony, 0.1-0.3wt percent of lead, 0.0003-0.05 wt percent of boron, 0.05-1.5wt percent of other components, wherein, the other components comprise at least one of the elements of: magnesium, iron, tin, nickel, silicon, bismuth and phosphorus, the other elements are zinc and inevitable impurities. The production method is that: the low lead and boron easy-cutting antimony brass alloy is treated by an alloying treatment and is smelted by a cover protection method to ensure the metal antimony, boron to become intermetallic compound through fast solid solution in the melten brass; the bass casting ingots are made by continuous casting under 1020 DEG C; the bass casting is pressed under a large pressing ratio under the temperature between 680 DEG C and 750 DEG C, anneal in the middle thermal treatment is under 450-650 DEG C according to cold process conditions, when the temperature is below 400 DEG C, anneal for eliminating stress is made. The invention has the advantages that the products have good mechanical, thermoforming, corrosion resistance, polishing and electroplating performance, and successfully solves the problems of singularity of waste chips, recovery of variety of components and comprehensive utilization and recycling. The recovery can be singularity or be comprehensive such as comprehensive recovery of the waste chips of the Cu-Zn-Si system, Cu-Zn-Bi system and Cu-Zn-Sb system alloy. At the same time the lead and brass waste chips can also be partly recovered and utilized.

The object of the present invention is to provide a laminated sheet for thermoforming, including a thermoplastic resin film layer; a decoration layer; and a support base resin layer, wherein the thermoplastic resin film layer, the decoration layer, and the support base resin layer are sequentially laminated, and the support base resin layer contains one or more linear low density polyethylene layers. Also, the object of the resent invention is to provide a formed product obtained by thermoforming the laminated sheet, and a method of producing the same. Furthermore, the object of the present invention is to provide an injection-molded product obtained by loading an injection resin onto the backside of the molded product, and a method of producing the same.

The invention relates to the technical field of extraordinary film preparation, and especially relates to a preparation method of a biaxially oriented polyphenylene sulfide composite film with good toughness and excellent heat resistance. The preparation method comprises the steps of master batch preparation, sheet casting and stretching film formation. The biaxially oriented polyphenylene sulfide composite film prepared by adopting a technical scheme in the invention has the advantages of excellent heat resistance, excellent dimensional stability, excellent heat formability and excellent toughness, can be applied the fields of electric insulation materials or forming materials of motors, transformers and insulation cables, the field of circuit substrate materials, and the field of loudspeaker vibration plates for mobile phones.

The invention relates to a titanium-aluminum-tin alloy applied to a golf club head, which comprises the following materials in percentage by weight: 89 to 95 percent of titanium, 3.5 to 6.5 percent of aluminum and 1.5 to 3.5 percent of tin. The titanium-aluminum-tin alloy can be selectively added with trace elements such as niobium, vanadium, molybdenum, zirconium, chromium, iron, silicon, oxygen, nitrogen, and the like to form a high elongation material with the elongation of between 11 and 15 percent and the tensile strength of between 700 and 950 Mpa. The high elongation material can be applied to a body and a batter side of the golf club head; and by the design of an internal structure of the body and the design of a structure of balance weight and fins, products of the golf club head have good beating performance, shock controlling and golf controlling performances, adjustable angles and individuation.

The invention discloses a titanium aluminum alloy applied to a golf club head, which comprises 88 to 92 percent of titanium and 7.5 to 10 percent of aluminum in percentage by weight, the elongation rate of the titanium aluminum alloy is 8 to 16 percent, the titanium aluminum alloy can be selectively added with niobium, vanadium, molybdenum, chromium, iron, silicon, oxygen, nitrogen and other microelements to form a high elongation rate material with the tensile strength of between 650 and 950 Mpa, and the high elongation rate material is applied to a body of the golf club head and combines the golf club head formed by a batting panel of a 6AL-4V-TI titanium alloy or a beta alloy with better rigidity to realize golf head products with better batting, vibration control and ball control of which the club part can be subjected to angle modulation for customization.

Provided is a polypropylene-based resin composition which gives uniform and fine cells and from which a foamed sheet and thermoform excellent in appearance, thermoformability, impact resistance, lightness, stiffness, heat resistance, heat insulating properties, oil resistance and the like can be produced. A polypropylene-based resin composition comprising (X) 5 to 99% by weight of a polypropylene resin having a structure with long chain branches, and (Y) 1 to 95% by weight of a propylene-based block copolymer produced by sequential polymerization, which block copolymer comprises (Y-1) a propylene (co)polymer and (Y-2) a propylene-ethylene copolymer, said resin (X) having properties (X-i) to (X-iv) and said block copolymer (Y) having properties (Y-i) to (Y-v), and the like.

The invention provides a yellowing-proof flexible polyurethane?foam and a manufacturing method thereof. The manufacturing method of the flexible polyurethane?foam is a manufacturing method allowing reaction of an organic polyisocyanate (A), a polyalcohol (B), a catalyst (C), a foaming agent (D) and a foam stabilizer (E) to form and to be solidified, so as to obtain the flexible polyurethane?foam. The manufacturing method is characterized in that the organic polyisocyanate (A) is mixture of the following substances: an allophanate group-containing organic polyisocyanate composition (A1) which is generated by a monohydric alcohol and an aliphatic and/or alicyclic diisocyanate, an allophanate group-containing organic polyisocyanate composition (A2) which is generated by a hydroxyl group-containing compound having more than two hydroxyl groups and an aliphatic and/or alicyclic diisocyanate, and an organic polyisocyanate compound (A3) which is generated by reaction of an aliphatic and/or alicyclic diisocyanate and a polyalcohol component (a1).

A polyester resin composition characterized by having a glass transition temperature (Tg) of 83 DEG C or higher and a melting point (Tm) of 230 DEG C or lower and having controlled crystallizability. This polyester has excellent surface thermoformability. In particular, the surface of the polyester can be formed into various shapes, e.g., a shape having ultrahigh fineness or a high aspect ratio. The polyester is for use as a thermoformed optical film excellent in heat resistance and transparency.

The present invention relates to a method of fabricating a laminate sheet product by using heat and pressure to form thermoformable particulates, such as acrylics and/or non-thermoformable particulates, such as polyester granules, quartz, or silica, into a sheet product. The invention also includes a particulate laminate sheet product comprising a melamine or phenolic backer sheets and a layer of one or more particulates. In preferred embodiments, melamine overlay sheets are also included in the laminate sheet. The invention also includes a particulate laminate sheet product made by the method of fabricating a laminate sheet product using heat and pressure to form thermoformable particulates, such as acrylics and/or non-thermoformable particulates, such as polyester granules, quartz, or silica, into a sheet product.

A polypropylene-based resin composition is provided that can provide a foam molding that exhibits an excellent closed cell characteristic and excellent extrusion characteristics, that is light weight and has a rigid feel, and that has an excellent recyclability.

This polypropylene-based resin composition contains 100 weight % or is less than 100 weight % but at least 70 weight % of component (A) below and contains 0 weight % or is greater than 0 weight % but not more than 30 weight % of component (B) below,

• component (A):
  • a propylene-based resin composition that comprises at least the following two components: a propylene-α-olefin copolymer (A1) satisfying conditions (A-1) to (A-3) and a propylene homopolymer (A2), (A1) and (A2) being obtained by polymerization by a multistage polymerization method, and this propylene-based resin composition having a content of (A1) of 1 to 20 weight % and a content of (A2) of 99 to 80 weight %, having a melt flow rate in the range from 5 to 20 g/10 minutes and exhibiting strain hardening in a measurement of extensional viscosity at a temperature of 180° C. and a strain rate of 10 s⁻¹,
• (A-1) an α-olefin content of 15 to 85 weight %,
• (A-2) an intrinsic viscosity q of 5 to 20 dL/g,
• (A-3) a Mw/Mn of 5 to 15;
• component (B):
  • a propylene-based resin composition comprising at least the following two components: a propylene homopolymer or a propylene-α-olefin copolymer having a content of non-propylene α-olefin of less than 1 weight % (B1), which has an MFR of 10 to 1000 g/10 minutes, and a propylene-α-olefin copolymer (B2) that has a weight-average molecular weight of 500,000 to 10,000,000 and a content of non-propylene α-olefin of 1 to 15 weight %, (B1) and (B2) being obtained by polymerization by a multistage polymerization method, and this propylene-based resin composition having a content of (B1) of 50 to 90 weight % and a content of (B2) of 50 to 10 weight %, and satisfying prescribed conditions (B-1) to (B-3).

Provided is a water-repellent, thermoplastic resin sheet including a textured layer which is formed from a polyethylene resin composition comprising a water repellent agent and which has a microscopic texture on one surface side, wherein at least the surface region of the textured layer is a cross-linked material which maintains the microscopic texture even after heated drawing. Also provided is a molded article, such as a molded container, formed by thermoforming the thermoplastic resin sheet.

A multi-layer film which is excellent in transferability to a metal shape during thermoforming and hardly produces uneven thickness, wrinkles, whitening or cracks on the surface of the obtained molded article.

The multi-layer film has a layer (layer A) containing a polycarbonate resin and a polyester-based thermoplastic elastomer and a layer (layer B) containing an acrylic resin, wherein

the layer B is formed on at least one side of the layer A.

The invention provides a micro-foaming polypropylene material and a preparation method thereof, which relate to the technical field of foaming plastic. The micro-foaming polypropylene material is prepared by the following raw materials: an endellite nano-material, a microcapsule foaming agent, and modified polypropylene. The raw materials are uniformly mixed, an injection moulding method is employed, and the micro-foaming polypropylene material is prepared under twice-open molding condition, and the micro-foaming polypropylene material has the advantages of compact, uniform and fine foam holes, and excellent mechanical property.