← Back to Patent Explorer
EP0223250A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Sanitary wares of acrylic or methacrylic resins and method for obtaining them

Assignee: Arkema SRL
•
Filing: 1986-11-20
•
Granted: —
•
Expires: 2006-11-20
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract The present invention relates to sanitary wares of acrylic and methacrylic resins, such as bath tubs, shower trays, sinks, and so forth, comprising a sheet of thermoform ed resin and a reinforcing layer of fiberglass-filled foamed unsaturated polyester.

Inventors

  • 👤 Carlo Dr. Sempio
  • 👤 Romeo Vailati
  • 👤 Tullo Ronchetti

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-10 01:11
CPC Classifications
B; B32; B32B; B32B27/00; B32B27/06; B32B27/065; B32B27/30; B32B27/308; B32B5/00; B32B5/18; B32B2262/00; B32B2262/10; B32B2262/101; B32B2266/00; B32B2266/02; B32B2266/0214; B32B2266/0264; B32B2305/00; B32B2305/02; B32B2305/028; B32B2305/08; B32B2555/00; Y; Y10; Y10T; Y10T428/00; Y10T428/13; Y10T428/131; Y10T428/1314; Y10T428/249921; Y10T428/249953; Y10T428/249982; Y10T428/249984; Y10T428/249986; Y10T428/249987; Y10T428/249991; Y10T428/249992

Claims Analysis

Total Claims: 7
Claim 1
Independent Claim 24 words
Sanitary wares of acrylic or methacrylic resin constituted by a sheet of thermoformed resin and by a reinforcing layer of fiberglass-filled foamed unsaturated polyester..
Claim 2
Dependent Claim 24 words
Sanitary wares of acrylic or methacrylic resin constituted by a sheet of thermoformed resin and by a reinforcing layer of fiberglass-filled foamed unsaturated polyester..
Claim 3
Dependent Claim 11 words
Sanitary wares according to claim 1, wherein the resin is polymethylmethacrylate.
Claim 4
Dependent Claim 50 words
Sanitary wares according to claims 1 and 2, wherein the thermoformed resin sheets are cast sheets, extruded sheets or co-extruded sheets consisting of two or more layers, wherein the layer in contact with water is generally polymethylmethacrylate or shock-resistant polymethylmethacrylate, and the other layers are of shock-resistant polymethylmethacrylate, ABS, MBS.
Claim 5
Dependent Claim 32 words
Sanitary wares according to the preceding claims, wherein the fiber g lass/ p olyester ratio is comprised within the range of from 10/90 to 40/60 and preferably of from 15/85 to 25/75.
Claim 6
Dependent Claim 47 words
Method for obtaining the sanitary wares of acrylic or methacrylic resin according to one or more of the claims 1-4, wherein a layer of thermoformed resin is reinforced with foamed unsaturated polyester, filled with fiberglass, applied by spraying onto the back of the sheet of thermoformed resin.
Claim 7
Dependent Claim 45 words
Method for obtaining the sanitary wares of acrylic or methacrylic resin according to claim 1, comprising: 1) a step of sheet heating; 2) a thermoforming step; 3) a spraying step for the application of the reinforcement; 4) a hardening step; and 5) a trimming step.

References Cited (Backward Citations)

No citation records indexed.

USPTO Annuity & Maintenance Windows

Maintenance schedule is calculated for granted US utility patents.

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag