Reinforced pultrusion member and method of making

Patent metadata

Field	Value
Publication number	US-11584041-B2
Application number	US-201916390661-A
Country	US
Kind code	B2
Filing date	Apr 22, 2019
Priority date	Apr 20, 2018
Publication date	Feb 21, 2023
Grant date	Feb 21, 2023

Abstract

A reinforced pultruded profile having a top edge, a bottom edge spaced along a vertical axis extending between the top edge and the bottom edge, a transverse axis oriented perpendicular to the vertical axis, and a machine axis oriented along a length of the profile. The pultruded profile includes a first reinforcing layer spaced along the vertical axis and oriented along the transverse axis, a second reinforcing layer spaced along the vertical axis and oriented along the transverse axis, and a first structural layer located between the first reinforcing layer and the second reinforcing layer, the first structural layer having a modulus of elasticity of at least 175 GPa.

First claim

What is claimed is:

1. A reinforced pultruded profile having a top edge, a bottom edge spaced along a vertical axis extending between the top edge and the bottom edge, a transverse axis oriented perpendicular to the vertical axis, and a machine axis oriented along a length of the profile, the pultruded profile comprising:
a first reinforcing layer spaced along the vertical axis and oriented along the transverse axis, the first reinforcing layer including a first plurality of longitudinal rovings, a first reinforcing structure comprising a first reinforcing mat, and a first resin matrix surrounding the first longitudinal rovings and the first reinforcing structure;
a second reinforcing layer spaced along the vertical axis and oriented along the transverse axis, the second reinforcing layer including a second plurality of longitudinal rovings, a second reinforcing structure comprising a second reinforcing mat, and a second resin matrix surrounding the second longitudinal rovings and the second reinforcing structure; and
a first structural layer in the form of a continuous ribbon of material located between the first reinforcing layer and the second reinforcing layer, the first structural layer having at least one aperture extending through a thickness of the first structure layer, the first structural layer having a modulus of elasticity of at least 175 GPa,
wherein at least one of the first resin matrix or the second resin matrix at least partially impregnate the aperture extending through the thickness of the first structural layer.

2. The pultruded profile of claim 1 , further comprising a third reinforcing layer spaced along the vertical axis, the third reinforcing layer including a third plurality of longitudinal rovings, a third reinforcing structure comprising a third reinforcing mat, and a third resin matrix surrounding the third longitudinal rovings and the third reinforcing structure.

3. The pultruded profile of claim 2 , further comprising a second structural layer located between the second reinforcing layer and the third reinforcing layer, the second structural layer having a modulus of elasticity of at least 175 GPa.

4. The pultruded profile of claim 3 , wherein the second structural layer includes at least one aperture extending through a thickness of the second structural layer.

5. The pultruded profile of claim 1 , wherein the first reinforcing mat comprises a first plurality of fibers oriented along the transverse axis.

6. The pultruded profile of claim 5 , wherein the first plurality of fibers include a first plurality of staple fibers attached to a first plurality of reinforcing fibers.

7. The pultruded profile of claim 5 , wherein the first plurality of reinforcing fibers comprises at least one selected from the group consisting of glass, carbon, metal, ceramic, synthetic or polymeric materials, composite materials, organic materials, or a combination thereof.

8. The pultruded profile of claim 1 , wherein the first structural layer comprises a continuous steel ribbon.

9. The pultruded profile of claim 1 , wherein the first reinforcing layer has a different thickness than the second reinforcing layer.

10. The pultruded profile of claim 1 , wherein the first reinforcing layer and the second reinforcing layer each have a different thickness than that of the first structural layer.

11. The pultruded profile of claim 1 , wherein the first resin matrix comprises a thermosetting polyester.

12. The pultruded profile of claim 1 , wherein the first reinforcing structure further comprises a first binder comprising at least one of latex, a polyvinyl acetate emulsion, and a crosslinking polyvinyl acetate emulsion.

Assignees

• Pella Corp

Inventors

• Bernhagen Todd A
• Smith Christopher D

Classifications

• B29B15/12 Primary

  of reinforcements of indefinite length · CPC title

• B29K2101/12

  Thermoplastic materials · CPC title

• B29C70/521 Primary

  and impregnating the reinforcement before the die · CPC title

• B29C70/10

  characterised by the structure of fibrous reinforcements {, e.g. hollow fibres} · CPC title

• B29K2105/08

  of continuous length, e.g. cords, rovings, mats, fabrics, strands or yarns · CPC title