In the manufacture of thermoplastically processable starch, an additive is essentially mixed with native or natural starch and the mixture is caused to melt by the application of heat and mechanical energy. The additive is a substance which lowers the melting point of the starch so that the melting point of the starch together with this additive lies below the decomposition temperature of the star...

Spherically polymerized polyolefins can be advantageously stabilized by being treated with at least one emulsion or dispersion containing a stabilizer or a mixture of stabilizers and an amine of formula I (I) wherein R1 is C1-C20alkyl which may be substituted by -OH, or is C3-C50alkyl which is interrupted by one or more oxygen atoms, or is C1-C8alkoxy, and each of R2 and R3 independently...

A phase grating mask is placed in-contact or near contact with an optical waveguide to make a blazed grating in the waveguide. A band of grating elements are defined across a surface of the mask such that in the plane of the surface each element is formed at a predetermined blaze angle to a central longitudinal axis of the band. The grating is made by aligning the waveguide with the axis of the ba...

A method of issuing an electronic negotiable document (END) comprises: creating as data an END and storing this in a tamper-resistant document carrier, the document carrier containing a unique public-secret key pair for signing and verifying and a unique document carrier identifier; signing the unique document-carrier identifier, the END and an END identifier using the secret key of the public-sec...

PCT No. PCT/GB94/00056 Sec. 371 Date Jul. 13, 1995 Sec. 102(e) Date Jul. 13, 1995 PCT Filed Jan. 12, 1994 PCT Pub. No. WO94/16000 PCT Pub. Date Jul. 21, 1994.A supported or cast film of a polyhydroxyalkanoate polymer, such as a polyhydroxybutyrate/valerate polymer, can be prepared by applying a layer of molten polymer to a cool (typically 4 DEG to 20 DEG C.) surface not substantially above the g...

PCT No. PCT/GB94/00056 Sec. 371 Date Jul. 13, 1995 Sec. 102(e) Date Jul. 13, 1995 PCT Filed Jan. 12, 1994 PCT Pub. No. WO94/16000 PCT Pub. Date Jul. 21, 1994.A supported or cast film of a polyhydroxyalkanoate polymer, such as a polyhydroxybutyrate/valerate polymer, can be prepared by applying a layer of molten polymer to a cool (typically 4 DEG to 20 DEG C.) surface not substantially above the g...

A clamped flange pipe or tube fitting (10) assembly includes a resilient seal ring (50) compressed in a chamber (30) formed by cooperating recesses in opposed flanges (18,18'). The chamber (30) and seal ring (50) are dimensionally related in a manner to produce circumferentially continuous, radially spaced primary and secondary seal areas (42,46) and to assure a continuous interior surface between...

The present invention is directed to a method for reducing waste accumulation by using an environmentally degradable disposable material. The disposable material, which includes a hydroxycarboxylic acid-containing polymer, degrades hydrolytically during operative and disposal stages in a controlled manner such that the disposal degradation rate of the material is accelerated relative to the operat...

Beschrieben wird ein Verfahren zur Herstellung von massegefärbten Fasern oder Filmen, umfassend die Maßnahmen: a) Herstellen einer Vormischung durch Vermahlen einer Zusammensetzung enthaltend ein polares aprotisches organisches Lösungsmittel, 5 bis 30 Gew. % eines aromatischen Polyamids und 0,5 bis 5 Gew.% einer farbgebenden Feststoffkomponente, so daß die farbgebende Feststoffkomponente Teilchen ...

A crosslinked copolymer composition is derived from an aliphatic polyester, a dianhydride and a diisocyanate. The copolymer can be used as a membrane and has a high thermal stability and good aromatic/saturate selectivity and permeability.

An electromagnetic shielding panel (1, 2, 3, 4, P5) incorporates at least two electroconductive coatings (10 and 6, 7,8). In two of the panels (1,2) the coatings are carried on separate sheets of float glass (5,9), one of the coatings 10 being an anti-abrasive coating is on the outermost surface of the glass (9) in the panel arrangement, while the other coating (6,7,8) being a relatively soft abra...

A film easily soluble in cold water comprises a water soluble copolymer composed of 3 to 30 mol% of an allyl ester, 96.5 to 65 mol% of a vinyl ester and 0.5 to 5 mol% of an unsaturated carboxylic acid and its anhydride and having a degree of saponification of not less than 70 mol%. The film is easily soluble in cold water and such solubility in cold water does not change even if it comes into cont...

A process for producing a propylene resin formed article with a hard coat is disclosed, comprising forming an ultraviolet-curing acrylic resin coating film on the surface of a propylene resin film or sheet, subjecting the film or sheet with the coating film to thermoforming, and irradiating the coating film to ultraviolet rays to cure said ultraviolet-curing resin, wherein said propylene resin fil...

PCT No. PCT/EP93/01320 Sec. 371 Date Nov. 22, 1994 Sec. 102(e) Date Nov. 22, 1994 PCT Filed May 26, 1993 PCT Pub. No. WO93/24560 PCT Pub. Date Dec. 9, 1993.Process for the production of foam boards having a minimum thickness of 20 mm and a cross-sectional area of at least 50 cm2 by extruding a mixture of the styrene polymer, from 1 to 10% by weight, based on the styrene polymer, of a blowing agent...

Disclosed are polyolefin films suitable for packaging having Elmendorf values lower than 0.8N in both machine direction and cross direction are obtained from compositions comprising (percentages by weight): A) from 70% to 90% of a polyolefin matrix containing 30% of one or more crystalline propylene homopolymers and/or copolymers having a flexural modulus greater than or equal to 1800 MPa; B) fr...

PCT No. PCT/EP93/02488 Sec. 371 Date Mar. 15, 1995 Sec. 102(e) Date Mar. 15, 1995 PCT Filed Sep. 14, 1993 PCT Pub. No. WO94/06761 PCT Pub. Date Mar. 31, 1994Compounds of formula (I) wherein R1, R2, R3 and R4 are each H or C1-C4 alkyl; R5 is (CH2)mNHSO2R6 or (CH)mNHCOR6; R6 is C1-C6 alkyl, C3-C6 cycloalkyl optionally substituted by aryl, aryl or heteroaryl; R7 is H, C1-C4 alkyl, C1-C4 alkoxy, halo,...

The present invention provides a wet-on-wet coating method comprising applying a thermosetting aqueous coating composition (A), and applying a thermosetting aqueous coating composition (B) to the uncured coating surface of the aqueous coating composition (A) wherein the aqueous coating composition (A) contains a base resin with a neutralization value of 20 to 30 KOH mg/g and the aqueous coating co...

A process for fabricating both bipolar and complementary field effect transistors in an integrated circuit is disclosed. The process begins with a structure having a P type substrate 10, an N type epitaxial layer 15, and an intervening N type buried layer 12. The process includes the steps of removing all of the epitaxial layer 15 and all of the buried layer 12 from regions of the substrate where ...

A ferroelectric capacitor for an integrated circuit includes a stack formed by a layer (10a) of a noble metal, a layer (20a) of a conducting oxide, a layer (30) of a ferroelectric material, another layer (20b) of a conducting oxide and another layer (10b) of a noble metal. The capacitor can also have another layer (20c) of conducting oxide located over the top layer of noble metal and below (20d) ...

A process for making multilayer coatings, especially for motor vehicle painting, in which at least three directly adjacent layers are applied having alternating polarity with respect to the resins used. The polarity of the coating media used can, for example, be achieved by the use of resins having ionic groups.