Cleaning product

• US 7,078,462 B2
• Filed: 02/22/2005
• Issued: 07/18/2006
• Est. Priority Date: 05/14/2001
• Status: Expired due to Term

• Current Assignee: The Procter & Gamble Company
• Original Assignee: The Procter & Gamble Company
• Inventors: Ward, Glenn Steven, Speed, Lynda Anne
• Primary Examiner(s): DELCOTTO, GREGORY R
• Application Number:
  US11/062,528
• Publication Number:
  US 20050164897A1
• Time in Patent Office: 511 Days
• Field of Search: 510/296, 510/439, 510/475, 510/473, 524/503, 524/557, 524/186, 524/236, 525/56, 525/61, 527/300, 527/314
• US Class Current: 525/60
• CPC Class Codes: B65D 77/046 and being a tray or like shallow container
• CPC Class Codes: B65D 85/00 Containers, packaging elements or packages, specially adapted for particular articles or materials B65D71/00, B65D83/00 take precedence; hand implements or travelling equipment A45C; cosmetic or toiletry equipment A45D; packages for surgical knives, scalpels or blades therefor A61B17/3215; containers specially adapted for medical or pharmaceutical purposes A61J1/00; paint cans B44D3/12; oil cans F16N3/04; containers for carrying small arms F41C33/06; packaging of ammunition or explosive charges F42B39/00; containers for record carriers, specially adapted for cooperation with the recording or reproducing apparatus G11B23/00
• CPC Class Codes: C11D 17/0073 Tablets
• CPC Class Codes: C11D 17/045 Multi-compartment
• CPC Class Codes: C11D 2111/14 Hard surfaces
• CPC Class Codes: C11D 3/3942 Inorganic per-compounds C11D3/3902 takes precedence
• CPC Class Codes: C11D 3/3953 Inorganic bleaching agents C11D3/3951 takes precedence

Abstract

An automatic laundry or dishwashing product in unit dose form comprising at least three distinct zones for delivering into at least three different stages in the washing cycle. The product provides improved cleaning, care and finishing benefits.

Claims

1. A pouch film material consisting of an outer layer of polyvinyl-alcohol film and an inner layer of a film of polymeric material which is water insoluble at temperatures above about 40°

C., and water soluble at temperatures below about 40°

C., wherein said inner layer polymeric film material is a mixture of an inverse solubility polymer selected from the group consisting of polyisopropylacrylamide, hydroxybutyl methylcellulose, and hydroxypropyl methylcellulose with polyvinyl alcohol in a weight ratio of inverse solubility polymer to polyvinyl alcohol of at least 1;

1.

2. A pouch film material according to claim 1 wherein the inverse solubility polymer is hydroxypropyl methylcellulose.