Artigos termoplásticos altamente nucleados

• Main Authors: BRIAN G. MORIN, MARTIN E. COWAN, BRIAN M. BURKHART, JEFFREY R. JONES, XIAODONG EDWARD ZHAO, DARIN L. DOTSON
• Format: Patent
• Language: Portuguese
• Published: 23.03.2004
• Edition: 7
• Subjects: ACYCLIC OR CARBOCYCLIC COMPOUNDS; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBONFILAMENTS; CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS,THREADS, FIBRES, BRISTLES OR RIBBONS; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; GENERAL PROCESSES OF COMPOUNDING; HETEROCYCLIC COMPOUNDS; HUMAN NECESSITIES; HYGIENE; MEDICAL OR VETERINARY SCIENCE; METALLURGY; NATURAL OR ARTIFICIAL THREADS OR FIBRES; ORGANIC CHEMISTRY; ORGANIC MACROMOLECULAR COMPOUNDS; PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES; SPINNING; TEXTILES; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS; WORKING-UP

"ARTIGOS TERMOPLáSTICOS ALTAMENTE NUCLEADOS". São providos compostos e composições compreendendo sais de metal específico de sais de biciclo [2.2.1] heptano dicarboxilato a fim de prover propriedades altamente desejáveis em artigos de poliolefina. Os sais da invenção e derivados dos mesmos são utilizáveis como agentes de nucleação e/ou de clarificação para esta poliolefina, provêem excelentes temperaturas de cristalização, rigidez e compatibilidade de estearato de cálcio na poliolefina alvo. Também, estes compostos demonstram higroscopicidade muito baixa e, conseq³entemente, excelente estabilidade em prateleira como formulações em pó ou em grânulos. Os métodos e composições de aditivo de poliolefina para produzir poliolefina como estes compostos também são contemplados nesta invenção. Compounds and compositions comprising specific metal salts of bicyclo[2.2.1]heptane dicarboxylate salts in order to provide highly desirable properties within polyolefin articles are provided. The inventive salts and derivatives thereof are useful as nucleating and/or clarifying agents for such polyolefin, provide excellent crystallization temperatures, stiffness, and calcium stearate compatibility within target polyolefin. Also, such compounds exhibit very low hygroscopicity and therefore excellent shelf stability as powdered or granular formulations. Polyolefin additive compositions and methods of producing polyolefin with such compounds are also contemplated within this invention.