B29K2023/38

BODYWORK PART COMPRISING AN OVERMOLDED INSERT MADE FROM AMORPHOUS POLYOLEFIN
20210138976 · 2021-05-13 · ·

The invention concerns a bodywork part for a motor vehicle comprising at least one transparent or translucent overmolded insert), the insert being produced from a material made from amorphous polyolefin.

RELEASE LAYER FOR PREPARATION OF ION-CONDUCTING MEMBRANES
20210111462 · 2021-04-15 ·

A method includes applying to a substrate a solution including a polymeric compound to form a release layer on the substrate; applying ion-conducting elements on the release layer; applying a matrix polymer on the release layer, wherein the matrix polymer surrounds at least some of the ion-conducting elements; and removing the release layer to separate the matrix polymer from the substrate such that the ion-conducting elements remain embedded in a carrier layer of the matrix polymer and form an ion-conducting membrane.

Release layer for preparation of ion conducting membranes

A method includes applying to a substrate a solution including a polymeric compound to form a release layer on the substrate; applying ion-conducting elements on the release layer; applying a matrix polymer on the release layer, wherein the matrix polymer surrounds at least some of the ion-conducting elements; and removing the release layer to separate the matrix polymer from the substrate such that the ion-conducting elements remain embedded in a carrier layer of the matrix polymer and form an ion-conducting membrane.

Fabricating ultra-thin structured polymer films

Processes for fabricating structured, relatively large area, ultra-thin polymer films are disclosed. For instance, such a process may include spinning a thermoplastic polymer film onto an etched wafer that serves as a mold for the thermoplastic polymer film, baking the thermoplastic polymer film on a hotplate at a curing temperature, delaminating the thermoplastic polymer film in water, and peeling the thermoplastic polymer film from the etched wafer, producing a structured thermoplastic polymer film that has structures corresponding to areas where the wafer has been etched.

Substrate assembly and method of bonding substrates

A substrate assembly and a method of bonding substrates are disclosed. The method includes steps of: providing two substrate; subjecting a connecting surface of each of the substrates to surface-modifying treatment to form surface-modified region respectively on each of the connecting surfaces; contacting the substrates in such a manner that the substrates are connected with each other through a physical interaction between the surface-modified regions; and laser irradiating and melting a portion of each of the connecting surfaces to form a respective bonding region, and solidifying the melted bonding regions of the substrates to bond the substrates together.

Substrate assembly and method of bonding substrates

A substrate assembly and a method of bonding substrates are disclosed. The method includes steps of: providing two substrate; subjecting a connecting surface of each of the substrates to surface-modifying treatment to form surface-modified region respectively on each of the connecting surfaces; contacting the substrates in such a manner that the substrates are connected with each other through a physical interaction between the surface-modified regions; and laser irradiating and melting a portion of each of the connecting surfaces to form a respective bonding region, and solidifying the melted bonding regions of the substrates to bond the substrates together.

3D printing of thermoset polymers and composites

The present disclosure provides a novel method of 3D printing using frontal polymerization chemistry. This method enables the printing of tough, high quality thermosets in a short time with the option of adding fiber reinforcement. As such, it facilitates fabrication of mechanically robust 3D-printed devices and structures.

SHRINK WRAP LABELS FOR SHAPED ARTICLES

Methods for applying high shrink wrap labels to a shaped article are disclosed. The leading edge of the label is bonded to the article. A seaming agent is applied, and the label is wrapped around the article. The seaming agent is then exposed to radiation to cure the seaming agent, and the label is then exposed to heat to cause heat-shrinking. The label is made of a film with at least one external layer that has a Hildebrand solubility parameter. The seaming agent includes a component having a Hildebrand solubility parameter that is within 2.2 MPa.sup.1/2 or within 4.4 calories.sup.1/2.Math.cm.sup.3/2 of the Hildebrand solubility parameter of the external layer of the film. The seaming agent also has a viscosity of at least 1 centipoise and less than 1000 centipoise when measured at any temperature between ambient temperature and 60 C. Articles including such affixed high shrink wrap labels are also disclosed.

SHRINK WRAP LABELS FOR SHAPED ARTICLES

Methods for applying high shrink wrap labels to a shaped article are disclosed. The leading edge of the label is bonded to the article. A seaming agent is applied, and the label is wrapped around the article. The seaming agent is then exposed to radiation to cure the seaming agent, and the label is then exposed to heat to cause heat-shrinking. The label is made of a film with at least one external layer that has a Hildebrand solubility parameter. The seaming agent includes a component having a Hildebrand solubility parameter that is within 2.2 MPa.sup.1/2 or within 4.4 calories.sup.1/2.Math.cm.sup.3/2 of the Hildebrand solubility parameter of the external layer of the film. The seaming agent also has a viscosity of at least 1 centipoise and less than 1000 centipoise when measured at any temperature between ambient temperature and 60 C. Articles including such affixed high shrink wrap labels are also disclosed.

Method for producing a syringe with an integrated closure element

The invention relates to a method for producing a syringe with an integrated closure element, which method comprises the following method steps: a) making available an injection moulding tool which comprises a first, a second and a third tool portion, wherein the first tool portion has a mould cavity open at both sides and extending along an axial direction (X), and wherein the second tool portion has a first injection moulding core and the third tool portion has a second injection moulding core; b) closing the injection moulding tool such that the first tool portion contacts the second and third tool portion, and the first and second injection moulding core each enter the mould cavity of the first tool portion through an opening and finally contact each other, as a result of which these tool portions form a first structural cavity; c) injecting a first plastic material into the first structural cavity, as a result of which a hollow cylindrical syringe body is formed with an end region at its distal end, wherein the end region has an attachment element, provided with an inner thread, and a hollow cylindrical endpiece which is at least partially bounded by the attachment element; d) cooling the tool portions, as a result of which the syringe body cools and hardens; e) bringing the first tool portion into contact with a fourth tool portion provided with a mould cavity closed at one end, as a result of which a second structural cavity is formed at the distal end of the syringe body; f) injecting a second plastic material into the second structural cavity, as a result of which the closure element is integrally formed on the attachment element, wherein the first and the second plastic material do not enter into a cohesive connection.