Composição poliolefínica termoplástica, processo para preparar um artigo termoformado e artigo termoformado

• Main Authors: PAUL M SOWERS, JAMES T SELISKAR, JAMES D OELBERG, KARCZ THOMAS, TARIQ S OWEIMREEN
• Format: Patent
• Language: Portuguese
• Published: 22.03.2022
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR; LAUNDERING; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; TEXTILES; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; TREATMENT OF TEXTILES OR THE LIKE; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS; WALL, FLOOR OR LIKE COVERING MATERIALS, e.g. LINOLEUM,OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF AFIBROUS WEB COATED WITH A LAYER OF MACROMOLECULARMATERIAL; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

composição poliolefínica termoplástica, processo para preparar um artigo termoformado e artigo termoformado. a presente invenção refere-se a composições poliolefínicas termoplásticas carregadas úteis, por exemplo, como folhas de isolamento acústico para aplicações automotivas formadas compreendendo um polímero de propileno tendo uma densidade igual ou maior que 0,885 g/cm3, um ou ma.is polímeros de etileno linear e/ou polímero substancialmente linear, um plastificante, um enchimento, preferivelmente carbonato de cálcio. dita composição demonstra um bom balanço de propriedades térmicas e rigidez, particularmente apropriado para extrusão de folha e termoformagem de artigos utilizando a mesma. The present invention relates to filled thermoplastic polyolefin compositions useful e.g., as sound-deadening sheeting for formed automotive applications comprising a propylene polymer having a density equal to or greater than 0.885 g/cm3, one or more linear ethylene polymer and/or substantially linear polymer, a plasticizer, and a filler, preferably calcium carbonate. Said composition demonstrates a good balance of heat properties and stiffness such that it is particularly suitable for sheet extrusion and thermoforming articles therefrom.