Patent classifications
B29C45/00
Method of preparing ASA graft copolymer, method of preparing thermoplastic resin composition including ASA graft copolymer, and method of manufacturing molded article using thermoplastic resin composition
The present invention relates to a method of preparing an ASA graft copolymer, a method of preparing a thermoplastic resin composition including the ASA graft copolymer, and a method of manufacturing a molded article using the thermoplastic resin composition. More particularly, the present invention provides an ASA graft copolymer having improved thermal stability through addition of an emulsifier in a specific amount range in a seed preparation step and introduction of a multifunctional carboxylic acid having 20 or more carbon atoms or a salt thereof, as an emulsifier, in a shell preparation step and a high-quality thermoplastic resin composition exhibiting excellent impact resistance, such as impact strength and tensile strength, and excellent appearance, such as surface gloss, whiteness, and retention-associated heat discoloration, and causing considerable reduction in the amount of gas generated on a surface of a resin during a high-temperature thermoforming process due to inclusion of the ASA graft copolymer.
Fluoroelastomer composition and molded article thereof
The invention provides a fluoroelastomer composition that can be crosslinked at an industrially sufficient rate without the use of a graphene having specific surface properties and can provide a fluoroelastomer molded article having higher tensile strength and better abrasion resistance than conventional fluoroelastomer molded articles even though having a similar tensile modulus to conventional fluoroelastomer molded articles. The fluoroelastomer composition contains a fluoroelastomer that contains a crosslinkable group-containing monomer unit and an elongated sheet-shaped graphene. The graphene exhibits a ratio (L/W) of a maximum length (L) and a width (W) of 2 to 10.sup.5, and the graphene exhibits a ratio (L/T) of the maximum length (L) and a thickness (T) of 1×10.sup.1 to 1×10.sup.7.
Compressible non-fibrous adjuncts
Stapling assemblies for use with a surgical stapler are provided. In one exemplary embodiment, the stapling assembly includes a cartridge having a plurality of staples disposed therein and a non-fibrous adjunct formed of at least one fused bioabsorbable polymer and configured to be releasably retained on the cartridge. Adjunct systems for use with a surgical stapler are also provided. Surgical end effectors using the stapling assemblies are also provided. Methods for manufacturing stapling assemblies and using the same are also provided.
Well inserts with brittle membranes
Disclosed is a well insert for cell culture, including: a membrane support having an upper end and a lower end, the upper end being adapted to engage a well of a microplate so as to suspend the well insert therein; and a permeable membrane for supporting a tissue culture, the permeable membrane being attached at the lower end of the membrane support and sealed thereto, the permeable membrane being of brittle material. The membrane support is overmolded or fastened on to the permeable membrane so as be sealed thereto.
Method for Preparation of a Moulded Composite from a Bulk Moulding Compound
A bulk moulding compound comprising one or more cyanate ester, a catalyst, a filler and reinforcement fibres is provide, whereby the one or more cyanate ester is independently selected from a difunctional cyanate ester compound and/or a polyfunctional cyanate ester and mixtures of these cyanate esters. Furthermore, the catalyst is independently selected from the group consisting of 4,4′ methylene-bis(2,6-diethylaniline) (M-DEA), 4,4′-methylene-bis(3-chloro-2,6-diethyl¬aniline) (M-CDEA), aluminum(III)acetylacetonate, and mixtures thereof.
PROPYLENE BASED COPOLYMER FOR CONTAINERS
A propylene/1-hexene copolymer having i) the content of 1-hexene derived units, measured by C.sup.13-NMR, ranging from 1.5 wt % to 2.5 wt % and the content of propylene derived units ranging from 97.5 to 98.5 wt. %; ii) a melting temperature, measured by DSC, ranging from 148 to 153° C.; iii) an amount of fraction insoluble in xylene at 25° C. higher than 97.0%; and iv) a melt flow rate (MFR), measured according to ISO 1133, 230° C., 2.16 kg, ranging from 35 to 65 g/10 min.
Ultrasonic method and device for indirectly measuring cavity pressure of injection molding machine
The present invention discloses a ultrasonic method for indirectly measuring a pressure of a cavity of an injection molding machine, comprising: emitting ultrasonic wave to each pull rod along an axial direction of the pull rod respectively at the same time, detecting an ultrasonic wave echo time difference of each pull rod, and obtaining an average pressure inside a cavity of the injection molding machine. By the detection method and detection device of the present invention, the pressure inside the cavity may be detected in a certain state, the pressure inside the cavity in the injection molding process may be detected in real time, and the detection process is simple and the accuracy is high.
MOLD AND METHOD OF MANUFACTURING FOR FIBER-REINFORCED POLYMERIC SPRINKLER HEAD PART
An injection mold for producing a sprinkler head part and related injection molding methods are described. The sprinkler head part includes a first, second, third and fourth mold portions. The first and second mold portions include first and second shaping elements structured to cooperatively form a body including a substantially cylindrical portion and a substantially planar portion, and two frame arms extending from the substantially planar portion of the body. The third mold portion includes a shaping element structured to form an orifice in the body of the sprinkler head. The fourth mold portion includes a shaping element structured to form a cross member connecting the two frame arms. The injection methods include injecting a composite material in molten form into the mold to form the molded sprinkler head part. The composite material includes thermoplastic polymeric resin and a plurality of reinforcing fibers dispersed in the resin.
HEAD FOR A PERSONAL CARE DEVICE
A head for a personal care device having a carrier including a front surface, at least one cleaning element partly embedded in the carrier and thus having an embedded cleaning element portion and a non-embedded cleaning element portion extending from the front surface of the carrier between a base end on the front surface and a free end; the embedded cleaning element portion extending from the front surface between a top end on the front surface and a bottom end, wherein the base end of the non-embedded cleaning element portion has a base end cross-sectional shape and a base end cross-sectional area, and the top end of the embedded cleaning element portion has a top end cross-sectional shape that is different to the base end cross-sectional shape and a top end cross-sectional area that is larger than the base end cross-sectional area.
METHOD FOR MANUFACTURING A DOOR OF A THRUST REVERSAL SYSTEM, A THRUST REVERSAL SYSTEM DOOR THUS OBTAINED AND AIRCRAFT PROPULSION ASSEMBLY COMPRISING SEVERAL SAID DOORS
A door for a thrust reversal system, an aircraft with such a door, and a method for manufacturing a door of a thrust reversal system. The door comprises a wall formed from long fibers embedded in a thermoplastic resin matrix and a network of ribs overmolded on one of the faces of the wall. A propulsion assembly of an aircraft comprises a thrust reversal system having a plurality of such doors.