Systems and methods for controlling the operation of a blow molder are disclosed. An indication of a crystallinity of at least one container produced by the blow molder may be received along with a material distribution of the at least one container. A model may be executed, where the model relates a plurality of blow molder input parameters to the indication of crystallinity and the material distribution and where a result of the model comprises changes to at least one of the plurality of blow molder input parameters to move the material distribution towards a baseline material distribution and the crystallinity towards a baseline crystallinity. The changes to the at least one of the plurality of blow molder input parameters may be implemented.

A reusable, non-adhesive protective cover is disclosed which includes a first layer having an exterior surface designed to contact a structure or object during use and a second layer having an exterior surface designed to be spaced away from the structure or object. Each of the first and second layers are formed from a thermoplastic film and are joined together to form a laminate which is free of polyvinyl chloride. Each of the first and second layers contains at least about 5% of a flame retardant. The first layer has a static coefficient of friction of at least about 0.5. The second layer exhibits attachment and release capabilities such that a joint tape can be used to join adjacent sheets of the reusable, non-adhesive protective cover together and the joint tape can be removed without damaging the reusable, non-adhesive protective cover.

The invention relates to a method for producing a moulded part (50) by structural foam moulding, in which a polymer melt (18) is provided by melting a thermoplastic material, in which the polymer melt (18) is charged with a foaming agent (22) and in which the polymer melt (18) charged with the foaming agent (22) is injected under pressure into a cavity (26) of a mould (28), and so the polymer melt (18) fills the cavity (26) behind a melt front (34) running through the cavity (26), wherein the rate of injection at which the polymer melt (18) is injected into the cavity (26) of the mould (28) is set such that the internal pressure of the polymer melt (18) in the cavity (26), in a region (40) that follows a portion of the melt front (34) with a time delay of at most 0.15 seconds, is greater than the critical pressure of the foaming agent (22), at least at one point in time during the injection-moulding operation. The invention also relates to a moulded part (50) of an expanded thermoplastic material, wherein the moulded part (50) has a surface region with visual structuring formed by the expanded thermoplastic material of which the average ratio of the degrees of gloss measured in the direction of flow in relation to the degrees of gloss measured transversely to the direction of flow is below 1.9, preferably below 1.5, in particular below 1.2. The invention also relates to uses of such a moulded part.

The present disclosure provides oriented multilayer films including a first layer, a second layer disposed on the first layer and a third layer disposed on the second layer, where the first layer and the third layer include a polyethylene independently selected from (i) a polyethylene having a density of about 0.94 g/cc or greater; (ii) a polyethylene copolymer including ethylene and a C.sub.4-C.sub.12 alpha-olefin and having a density 7 from about 0.927 g/cc to about 0.95 g/cc; or (iii) a mixture thereof, and at least one of the first layer or the third layer includes the polyethylene copolymer, the second layer includes a polyethylene composition having a density of about 0.91 g/cc or greater and the oriented multilayer film has a haze of about 10% or less and a 1% secant modulus in the direction of stretching of about 500 MPa or greater.

A fiber-reinforced composite material (K), containing a thermoplastic polymer matrix and at least one natural-fiber component, is technically advantageous if it contains at least 45% (v/v) of a styrene (co)polymer (A) as polymer matrix, 30-55% (v/v) of a natural-fiber sheet material (B) as natural-fiber component, optionally 0-10% (v/v) of an additional polymer component (C), and optionally 0-10% of at least one additive (D), the volume percentages of components (A) to (D) adding up to 100 volume percent of the composite material (K).

In the method for manufacturing a three-dimensional structure of the invention, an ink for forming an entity portion is applied to a region where the three-dimensional structure is configured, and an ink for forming a sacrificial layer is applied to a region on a surface side of an outermost layer which is adjacent to a region to become the outermost. As the ink for forming a sacrificial layer, a first ink for forming a sacrificial layer and a second ink for forming a sacrificial layer are used. At the time of curing the ink for forming an entity portion, the viscoelasticity of the first ink is smaller than that of the ink for forming an entity portion, and at the time of curing the ink for forming an entity portion, the viscoelasticity of the second ink is greater than that of the ink for forming an entity portion.

Systems and methods for controlling the operation of a blow molder are disclosed. An indication of a crystallinity of at least one container produced by the blow molder may be received along with a material distribution of the at least one container. A model may be executed, where the model relates a plurality of blow molder input parameters to the indication of crystallinity and the material distribution and where a result of the model comprises changes to at least one of the plurality of blow molder input parameters to move the material distribution towards a baseline material distribution and the crystallinity towards a baseline crystallinity. The changes to the at least one of the plurality of blow molder input parameters may be implemented.

A method of preparing a diene-based rubber latex, a method of preparing an ABS-based graft copolymer including the same, and a method of manufacturing an ABS-based injection-molded article include preparing an in-situ bimodal rubber latex, in which a small-diameter polymer and a large-diameter polymer are formed in a desired ratio, by controlling contents, addition time points, and types of reactants when a conjugated diene based monomer, a crosslinking agent with a long linear chain end, an emulsifier including a multimeric acid of an unsaturated fatty acid or a metal salt thereof, and a molecular weight regulator are polymerized.

Disclosed herein is a thermoplastic moulding composition including a) from 50 to 96.95% by weight of polyamide containing aliphatic non-branched C.sub.10-12 building blocks, selected from polyamide 6.10 and mixtures of polyamide 6.10 with polyamide 6.12, polyamide 12.12, polyamide 11 and/or polyamide 12, b) from 0 to 37% by weight of further polyamide different from component A); c) from 3 to 30% by weight of polyamide-polyether block copolymer; d) from 0.05 to 1.5% by weight of hindered amine light stabilizer, e) from 0 to 1% by weight of sterically hindered phenol oxidation retarder; f) from 0 to 20% by weight of further additives, where the total of the percentages by weight of a) through f) is 100% by weight and the total of the percentages by weight of b) and c) is not more than 40% by weight.

The present disclosure relates to a thermoplastic resin composition, a method of preparing the same, and a molded article manufactured using the same. The thermoplastic resin composition includes graft copolymer (A) including a polymer seed including 51 to 77 % by weight of an alkyl (meth)acrylate and 23 to 49% by weight of an aromatic vinyl compound, a rubber core surrounding the polymer seed and including 78 to 90% by weight of an alkyl acrylate and 10 to 22% by weight of an aromatic vinyl compound, and a graft shell surrounding the rubber core and including 65 to 80% by weight of an aromatic vinyl compound, 14 to 25% by weight of a vinyl cyanide compound, and 3 to 15% by weight of an alkyl acrylate; and a non-graft copolymer (B) including an alkyl (meth)acrylate, an alkyl-substituted styrene-based compound, and a vinyl cyanide compound.