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US 7,311,957 B2Granted
Sound absorbing material and process for making
AssigneeC.T.A. Acoustics
InventorMatthew Bargo, II
Life of this patent
Estimating the term…
Abstract
A sound absorbing material having a homogenous mixture of an organic man-made fiber, an inorganic man-made fiber, a co-binder, and a cellulose material wherein the organic man-made fiber is polyester, the inorganic man-made fiber is fiberglass, and the co-binder is a thermo-setting resin. The cellulose material may include Kaolin clay and/or boric acid.
Claims47
A sound absorbing material, comprising:
- an organic man-made fiber;
- an inorganic man-made fiber;
- a thermosetting binder;
- and,
- pure cellulose fibers;
- said organic man-made fiber, said inorganic man-made fiber, said binder and said cellulose material defining a homogeneous sound absorbing material.
3 more elements
A sound absorbing material, comprising:
- a homogeneous mixture of:
- a plurality of polyester fibers;
- a plurality of textile fiberglass fibers;
- a thermo-setting binder;
- a plurality of pure cellulose fibers;
- and,
- at least one layer of a porous polyfilm.
4 more elements
A sound absorbing material, comprising:
- a homogeneous mixture including:
- a plurality of polyester fibers;
- a plurality of textile fiberglass fibers;
- a thermo-setting binder;
- a plurality of cellulose fibers;
- and,
- a preselected amount of boric acid.
4 more elements
An improved sound absorbing material, comprising:
- a blended matrix of a polyester fiber and a textile fiberglass fiber;
- said matrix further including a binder blended with said polyester and fiberglass fibers and pure fibrous cellulose.
An improved sound absorbing material, comprising:
- a thermo-setting binder;
- a plurality of polyester fibers;
- a plurality of textile fiberglass;
- a plurality of pure cellulose fibers;
- said binder, said polyester fibers, said textile fiberglass and said pure cellulose fibers homogeneously mixed and molded to provide said sound absorbing material which inhibits sagging at temperatures above 450 degrees Fahrenheit, inhibits burning when exposed to an open flame, and inhibits moisture absorption.
2 more elements
A sound absorbing material, comprising:
- an in-organic man-made fiber;
- an organic man-made fiber;
- a binder;
- and,
- pure cellulose fibers;
- said organic man-made fiber, said in-organic made fiber, said pure cellulose fibers and said binder homogeneously mixed and defining said sound absorbing material which inhibits sagging at temperatures above 450 degrees Fahrenheit, inhibits burning when exposed to an open flame, and inhibits moisture absorption.
3 more elements
Dependencies are inferred from the claim text.