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vol. 19, No. 6, Page 7 us 4,797,435 US 4,797,436 US 4,797,438 us 4,797,441 us 4,797,451 us 4,797,455 UV ABSORBERS Bayer AG Priority Date: 23 January 1986 Use of 3-benzalphthalides as UV stabilizers for thermoplastic polyesters, polycarbonates, and polyester carbonates. LIGHT STABILIZERS Hoechst AG Priority Date: 26 November 1985 Oligomeric diazaoxaspirodecanes. STABILIZED GAMMA-IRRADIATED POLYPROPYLENE The B.F. Goodrich Co. Priority Date: 11 May 1987 Incorporating a hindered amine stabilizer to improve strength and reduce discolouration in sterilizable products. FIRE RETARDANTS Akzo N.V. Priority Date: 11 June 1987 Dichloro (acetic or propionic) acid aryl esters. SOLID POLYMERIC STABILIZER COMPOUNDS Eniricerche SpA Priority Date: 9 October 1985 Process for their manufacture. CURING AGENT FOR EPOXY RESINS W.R. Grace & Co. Priority Date: 6 August 1987 Isocyanates blocked with 1-amino-alkylimidazoles. Cont./...... ADDITIVES FOR POLYMERS 0 1989 Elswier Science PublIshem Ud., England./SS/SO.OO + 2.20 No part of this publication may bee reproduced, stored in a retrieval system, or transmitted by any form or by any means, electronic, mechanical, photocopying, reccording or otherwise, without the prior permission of the publishers (Readers in the USA. - please see special regulations listed on back cover.),

US 4,797,455 Curing agent for epoxy resins

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Page 1: US 4,797,455 Curing agent for epoxy resins

vol. 19, No. 6, Page 7

us 4,797,435

US 4,797,436

US 4,797,438

us 4,797,441

us 4,797,451

us 4,797,455

UV ABSORBERS Bayer AG Priority Date: 23 January 1986

Use of 3-benzalphthalides as UV stabilizers for thermoplastic polyesters, polycarbonates, and polyester carbonates.

LIGHT STABILIZERS Hoechst AG Priority Date: 26 November 1985

Oligomeric diazaoxaspirodecanes.

STABILIZED GAMMA-IRRADIATED POLYPROPYLENE The B.F. Goodrich Co. Priority Date: 11 May 1987

Incorporating a hindered amine stabilizer to improve strength and reduce discolouration in sterilizable products.

FIRE RETARDANTS Akzo N.V. Priority Date: 11 June 1987

Dichloro (acetic or propionic) acid aryl esters.

SOLID POLYMERIC STABILIZER COMPOUNDS Eniricerche SpA Priority Date: 9 October 1985

Process for their manufacture.

CURING AGENT FOR EPOXY RESINS W.R. Grace & Co. Priority Date: 6 August 1987

Isocyanates blocked with 1-amino-alkylimidazoles.

Cont./......

ADDITIVES FOR POLYMERS

0 1989 Elswier Science PublIshem Ud., England./SS/SO.OO + 2.20 No part of this publication may bee reproduced, stored in a retrieval system, or transmitted by any form or by any means, electronic, mechanical, photocopying, reccording or otherwise, without the prior permission of the publishers (Readers in the USA. - please see special regulations listed on back cover.),