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US 2023/0015239 A1Published application
Stabilising Composition
AssigneeSi Group, Inc.
InventorsWarren J. Ebenezer, Jonathan Hill
Life of this patent
Estimating the term…
Abstract
The invention concerns a stabilising composition, comprising: at least one antioxidant comprising one or more of: a phenolic antioxidant, a phosphite antioxidant, a sulphur-containing antioxidant, and an aminic antioxidant; and at least one buffering agent, wherein the buffering agent has the capacity to buffer in aqueous solution at a pH range from 4 to 8.
Claims27
1-25. (canceled)
A method of stabilising a polyolefin or a hot melt adhesive to provide a stabilised polymeric composition, the method comprising:
- adding a stabilising composition to the polyolefin or the hot melt adhesive,
- wherein the stabilising composition comprises:
- a. at least one antioxidant comprising one or more of:
- i. a phenolic antioxidant;
- ii. a phosphite antioxidant;
- iii. a sulphur-containing antioxidant;
- and
- iv. an aminic antioxidant;
- and
- b. at least one buffering agent,
- wherein the buffering agent has the capacity to buffer in aqueous solution at a pH range from 4 to 8, and
- wherein the buffering agent is a solid at a temperature of 50° C. or lower.
9 more elements
A stabilised polymeric composition comprising a polymeric base material and a stabilising composition, wherein
- the polymeric base material comprises a polyolefin or a hot melt adhesive;
- the stabilising composition comprises:
- a. at least one antioxidant comprising one or more of:
- i. a phenolic antioxidant;
- ii. a phosphite antioxidant;
- iii. a sulphur-containing antioxidant;
- and
- iv. an aminic antioxidant;
- and
- b. at least one buffering agent,
- wherein the buffering agent has the capacity to buffer in aqueous solution at a pH range from 4 to 8, and
- wherein the buffering agent is a solid at a temperature of 50° C. or lower.
9 more elements
Dependencies are inferred from the claim text.