B29K2031/04

Plasticity induced bonding

Methods and apparatuses for bonding polymeric parts are disclosed. Specifically, in one embodiment, the polymeric parts are bonded by plastically deforming them against each other while they are below the glass transition temperatures. A method includes: placing a first polymeric part in contact with a second polymeric part; and plastically deforming the first polymeric part and the second polymeric part against each other to bond the first polymeric part to the second polymeric part. Additionally, during the plastic deformation, a temperature of the first polymeric part is less than a glass transition temperature of the first polymeric part and a temperature of the second polymeric part is less than a glass transition temperature of the second polymeric part.

Plasticity induced bonding

Methods and apparatuses for bonding polymeric parts are disclosed. Specifically, in one embodiment, the polymeric parts are bonded by plastically deforming them against each other while they are below the glass transition temperatures. A method includes: placing a first polymeric part in contact with a second polymeric part; and plastically deforming the first polymeric part and the second polymeric part against each other to bond the first polymeric part to the second polymeric part. Additionally, during the plastic deformation, a temperature of the first polymeric part is less than a glass transition temperature of the first polymeric part and a temperature of the second polymeric part is less than a glass transition temperature of the second polymeric part.

Pelletized Road Marking Binders and Related Methods

A composition for use as a binder system for road marking formulations and methods for making thereof is disclosed. The binder system is provided as pellets. The method provides for making the pelletized binder system, and mixing the pelletized binder system with fillers and other components, heating the mixed ingredients forming into a molten mixture for applying on a road surface. The pelletized binder system comprises at least a resin and an elastomer in one embodiment; at least a resin and a plasticizer in a second embodiment; and at least a resin, an elastomer, and a plasticizer in a third embodiment.

Method of making radiochromic dosimeter using Calcein dye

Calcein-PVA film and Calcein solution dosimeters is made for high dose applications. Systematic evaluation of dosimetric properties for the films is being conducted and was found useful for routine dosimeter in industrial radiation processing. The color bleaching of CA-PVA film and CA solution increases gradually with increasing absorbed dose in the dose range of 5-30 kGy for film, and 0.25-1 kGy for solution. The dose sensitivity increases significantly with increase of concentration of CA dye. The response of the CA-PVA films was slightly affected by relative humidity and temperature. The stability of film dosimeters and solutions after irradiation was very high and were stable for up to 30 days.

CONDUCTIVE POLYMER DISPERSION, CONDUCTIVE FILM AND METHOD OF MANUFACTURING THE SAME, AND ANTISTATIC CONTAINER AND METHOD OF MANUFACTURING THE SAME
20190048210 · 2019-02-14 ·

Provided is a conductive polymer dispersion, including: a conductive composite containing a ?-conjugated conductive polymer and a polyanion; a vinyl versatate polymer; and a dispersion medium.

MONOFILAMENT-REINFORCED HOLLOW FIBER MEMBRANE WITH SCALLOPED LUMEN
20190022598 · 2019-01-24 ·

A hollow fiber membrane is formed by embedding a braid having a spiral open weave of monofilaments only, to avoid a whiskering problem. The open weave is characterized by contiguous, circumferential, rhomboid-shaped areas of polymer film separated by monofilaments. When the braid is supported on a plasticized PVA cable having a scalloped periphery, the braid can be infiltrated with membrane polymer which, when coagulated, embeds the braid positioning it around the lumen. The embedded spiral weave, free of any circumferentially constricting monofilament, allows the membrane to be biaxially distensible. The membrane has give not only in the axial or longitudinal direction but also in the radial direction. Give in the radial direction permits soiled membranes to be backwashed under higher pressure than in a comparable braid which is not radially distensible.

HIGH TG MONOLITHIC POLY(VINYL ACETAL) SHEET

A polyvinyl acetal poly(vinyl acetal), such as polyvinyl butyral, resin formulation, a method of extruding poly(vinyl acetal) resins, and related materials and products that provide for monolithic poly(vinyl acetal) sheets and glass panes having high Tg of at least 50 C. and high modulus at acceptable rates as indicated by their high melt flow index. This is made possible by a reduction in the amount of plasticizer while using a low molecular weight resin not to exceed 160,000 to obtain a thermoplastic resin having a high melt flow index and high Tg. The articles made with these monolithic interlayer sheets can be used in applications that require good modulus at outdoor temperatures.

HIGH TG MONOLITHIC POLY(VINYL ACETAL) SHEET

A polyvinyl acetal poly(vinyl acetal), such as polyvinyl butyral, resin formulation, a method of extruding poly(vinyl acetal) resins, and related materials and products that provide for monolithic poly(vinyl acetal) sheets and glass panes having high Tg of at least 50 C. and high modulus at acceptable rates as indicated by their high melt flow index. This is made possible by a reduction in the amount of plasticizer while using a low molecular weight resin not to exceed 160,000 to obtain a thermoplastic resin having a high melt flow index and high Tg. The articles made with these monolithic interlayer sheets can be used in applications that require good modulus at outdoor temperatures.

Joining method

A joining method for joining a first member having a hole that is opened on at least one surface, to a second member including a material of which a melting temperature is lower than that of a constituent material of the first member, includes: laminating the second member on the first member so as to cover an opening of the hole; and introducing that material of the second member which is softened or melted into the hole through the opening and curing the material of the second member.

Joining method

A joining method for joining a first member having a hole that is opened on at least one surface, to a second member including a material of which a melting temperature is lower than that of a constituent material of the first member, includes: laminating the second member on the first member so as to cover an opening of the hole; and introducing that material of the second member which is softened or melted into the hole through the opening and curing the material of the second member.