A sheet material with a cellular structure and/or a process for producing same
AssigneeAcoustic Space Pty Ltd
InventorsPhilippe Pierre Marie Joseph DONEUX, Bela TAKACS
Life of this patent
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Abstract
A sheet material with a cellular structure wherein the sheet material is produced by preparing a composition including PVC, a filler material and a plasticiser and providing a cellular structure within the composition prior to curing to form the sheet material. The composition may further include a cellular structure promoting agent. The sheet material with a cellular structure may be used in building applications and has advantageous sound attenuation, thermal conductivity, resilience and impact resistance properties.
Claims38
A composition for producing a sheet material with a cellular structure, the composition including the following components:
- (a) about 5 to about 25 weight % of PVC;
- (b) about 50 to about 75 weight % of a filler material;
- (c) about 10 to about 40 weight % of a plasticiser;
- and
- (d) about 0.05 to about 2.0 weight % of a cellular structure promoting agent.
A process for producing a sheet material with a cellular structure the process including the steps of:
- a. preparing a composition including the steps of:
- i. providing about 10 to about 40 weight % of a plasticiser;
- ii. mixing about 0.05 to about 2.00 weight % of a cellular structure promoting agent with the plasticiser to provide a first mixture;
- iii. mixing about 5 to about 25 weight % of PVC into the first mixture to form a second mixture;
- iv. mixing about 50 to about 75 weight % of a filler material into the second mixture to form the composition, the weight % calculated on the weight of the total composition,
- b. forming the composition into a sheet;
- and
- c. heating the sheet formed from the composition in step b. to promote the cellular structure within the composition and to cure the composition.
A sheet material with a cellular structure wherein the sheet material is produced by preparing a composition including PVC, a filler material and a plasticiser and providing a cellular structure within the composition prior to curing to form the sheet material.
Dependencies are inferred from the claim text.