B32B2439/60

Foamed blow molded article

The invention is directed to a blow molded article. The article comprises at least three layers wherein layer A comprises polymer, layer B comprises a foam composition comprising high density polyethylene having a quotient of melt strength and apparent viscosity>2 cN/k.Pa.s and layer C comprises polymer wherein the layer comprising the foam composition is enclosed between two layers A and C and wherein the melt strength is determined as described in ISO 16790:2005 and the apparent viscosity is determined as described in ISO 11443:2014 and wherein the foam composition is produced with a physically blowing agent.

Laminate sheet and manufacturing method therefor

A method for manufacturing a laminate sheet including a fluororesin film and a silicone rubber sheet that are adhered to one another, where the fluororesin film has a reactive functional group as a result of a surface treatment, the side with the reactive functional group is overlapped with an organic peroxide-containing millable-type silicone rubber composition, where the silicone rubber composition is sheet-shaped and the organic peroxide has a one-minute half-life temperature in the range of 100−150° C., and the silicone rubber composition is cured by being heated under pressure at 90-135° C. The laminate sheet has a peel adhesion strength of 3N or more. The four corners of a 120 mm square test sample of the laminate sheet do not curve into one end of a semicircular arc shape or one end of a C shape, and the average warpage value of the four corners is 35 mm or less.

EASILY TEARABLE FILM, MULTILAYER FILM, PACKAGING MATERIAL, AND CONTAINER
20210102065 · 2021-04-08 ·

An easily tearable film with excellent linear cuttability, as well as a multilayer film, a packaging material, and a container are provided. The easily tearable film is a polyamide resin film including polyamide resin components including more than 20 parts by mass and 70 parts by mass or less of a semi-aromatic polyamide resin A and less than 80 parts by mass and 30 parts by mass or more of an aliphatic polyamide resin B; wherein the semi-aromatic polyamide resin A is constituted of a diamine-derived constituent unit and a dicarboxylic acid-derived constituent unit; 60 mol % or more of the diamine-derived constituent units are derived from metaxylylenediamine; 60 mol % or more of the dicarboxylic acid-derived constituent units are derived from an α,ω-linear aliphatic dicarboxylic acid having from 4 to 10 carbons; and the polyamide resin film is stretched, the polyamide resin film having an area fraction corresponding to the semi-aromatic polyamide resin A, as observed in secondary electron image observation, of 9.8% or more after plane ion milling of a cross section of the polyamide resin film in the TD direction.

Multilayer barrier film

A multilayer plastic film or sheet having a series of component layers and optional bonding layers tying said component layers together is provided. The multilayer film or sheet comprises a central barrier layer comprising first and second layers of polyvinylidene chloride polymer bonded together with a tie or bonding layer, an outer layer adjacent to an outer side of the first PVDC layer, and a sealant layer adjacent to an outer side of the second PVDC layer.

Blow bottle and method for molding blow bottle

A blow bottle includes an outer layer and an inner layer, wherein the inner layer has blackness higher than that of the outer layer, and wherein the outer layer has an L* value of 20 or more and 90 or less in an International Commission on Illumination (CIE) L*a*b* color system.

LIQUID-REPELLENT STRUCTURE, PRODUCTION METHOD THEREOF, WRAPPING MATERIAL, AND SEPARATION SHEET

The liquid-repellent structure comprises a major surface to which liquid repellency is imparted, and a liquid-repellent layer formed on the major surface; wherein the liquid-repellent layer contains a scale-like filler having an average particle size of 0.1 to 6 μm, inclusive, a thermoplastic resin, and a fluorine compound, and has aggregates containing the scale-like filler; and the ratio W.sub.S1/(W.sub.P+W.sub.FC) of the mass W.sub.S1 of the scale-like filler contained in the liquid-repellent layer to the sum (W.sub.P+W.sub.FC) of the mass W.sub.P of the thermoplastic resin and the mass W.sub.FC of the fluorine compound contained in the liquid-repellent layer is 0.1 to 10 inclusive.

Light-weighting with dual resins in a multi-layer bottle
11007757 · 2021-05-18 · ·

Molded multilayer polymer compositions and structures are provided, including a body portion having a body wall. The body wall has a first layer comprising a copolymer HDPE, a second layer comprising a homopolymer HDPE, and a third layer comprising a mix of the copolymer HDPE of the first layer and the homopolymer HDPE of the second layer, wherein the third layer is disposed between the first layer and the second layer, and a total weight content of the homopolymer HDPE is at least about 30 wt-% of the body wall. The body wall has an overall wall thickness T, the first thickness is about 10% of the overall wall thickness T, the second thickness is about 20% of the overall wall thickness T, and the third layer has a third thickness of about 70% of the overall wall thickness T.

TITANIUM DIOXIDE CATALYZED BUTADIENE POLYMER BASED OXYGEN SCAVENGING SYSTEM
20210130588 · 2021-05-06 ·

A composition of matter having oxygen scavenging properties comprises a blend of a base polymer, a butadiene polymer, and titanium dioxide in an amount sufficient to catalyze reaction of oxygen with the butadiene polymer. In further aspects, methods for making the compositions herein and packaging film structures comprising the compositions herein, and packaging articles formed of the same, are also provided.

Tamper evident tabbed sealing member having a foamed polymer layer

A pull-tab sealing member for a container providing a foamed polymer layer positioned within the sealing member for effective heat sealing to the container together with a lower laminate below a tab capable of tearing to provide a tamper evident structure below the tab.

POLYMERIC MATERIAL FOR CONTAINER

A formulation for producing a polymeric material including high-density polyethylene, a chemical blowing agent, and other optional components is described.