Process for compression moulding liquid resins with structural reinforcements
OwnerBradford Armstrong, Gregory Browerinventors
Life of this patent
Estimating the term…
Abstract
Compression moulding methods and products produced therefrom are provided, including compression moulded products produced from liquid resins having structural reinforcements incorporated therein. A requisite amount of the liquid resin is poured or sprayed into a mould cavity so as to cover the majority of the tool surface. A reinforcing material is then introduced into the mould cavity. The mould is then closed so as compress the liquid resin and wet out the reinforcing material and fill the cavity. The liquid resin is allowed to cure and harden in the mould cavity, whereupon the mould is then opened, and the reinforced structural part is removed.
Claims20
A compression moulding system, comprising:
- a compression moulding device, wherein the device includes first and second mould face surfaces, wherein a cavity is selectively formed between the first and second mould faces;
- a first introduction system for introducing a liquid resin into the cavity so as to substantially coat at least one of the first or second mould face surfaces;
- a second introduction system for introducing into the cavity a reinforcing material having cross-oriented fiberous sheets;
- and
- a system for causing at least one of the first and second mould face surfaces to move towards the other so as to compress the liquid resin in the cavity, wherein the liquid resin substantially wets out the reinforcing material and fills the. cavity.
A method for forming a product, comprising:
- providing a compression moulding device, wherein the device includes first and second mould face surfaces, wherein a cavity is selectively formed between the first and second mould faces;
- introducing a liquid resin into the cavity so as to substantially coat at least one of the first or second mould face surfaces;
- introducing a reinforcing material into the cavity before or after introducing the liquid resin;
- and
- causing at least one of the first and second mould face surfaces to move towards one another so as to compress the liquid resin in the cavity, wherein the liquid resin substantially wets out the reinforcing material and completely fills the cavity.
A reinforced composite product made in a compression moulding operation, wherein the product is comprised of a cured liquid resin and a reinforcing material contained therein, the reinforcing material having more than one layer.
Dependencies are inferred from the claim text.