METHOD FOR INSERT MOLDING GLASS OR AN INORGANIC MATERIAL

• US 20120044590A1
• Filed: 01/22/2010
• Published: 02/23/2012
• Est. Priority Date: 05/15/2009
• Status: Active Grant

• Current Assignee: HI-P Singapore Pte Limited
• Original Assignee: HI-P International Limited (YHT Venture Pte Ltd.)
• Inventors: Alcazar, Ross
• Granted Patent: US 8,514,494 B2
• Time in Patent Office: Days
• US Class Current: 359/819
• CPC Class Codes: B29C 45/14434 Coating brittle material, e.g. glass B29C45/14377, B29C45/14418 take precedence
• CPC Class Codes: B29C 45/14467 Joining articles or parts of a single article B29C45/14377, B29C45/14385, B29C45/14581, B29C45/14614 and B29C45/006 take precedence
• CPC Class Codes: B29L 2031/3431 Telephones, Earphones
• CPC Class Codes: H04M 1/0266 for a display module assembly
• CPC Class Codes: H04M 1/0283 for providing a decorative aspect, e.g. customization of casings, exchangeable faceplate

Abstract

The present invention relates to insert molding. A glass lens or an inorganic material is inserted into a front housing unit. The glass lens or an inorganic material is aligned within the front housing unit such that the glass lens or an inorganic material lies within the inside of the front housing unit. A thermobond adhesive is applied onto the glass lens or the inorganic material. During the insert molding process, a molten resin is injected into the space formed by the glass lens or the inorganic material and the front housing unit. The molten resin flows around the glass lens or the inorganic material and forms an insert molded part.

Claims

1. A process for producing an insert molded part comprising the steps of:

providing a glass lens;

providing a front housing unit;

providing a thermobond adhesive;

applying thermobond adhesive onto the glass lens;

inserting the glass lens into the front housing unit, aligning the glass lens with the front housing unit such that the glass lens lies within the inside of the front housing unit;

injecting a molten resin, during an insert molding process, into space formed by the glass lens and the front housing unit;

wherein the molten resin flows around the glass lens, the molten resin activates and liquefies the thermobond adhesive that is applied onto the glass lens and forms an insert molded part, and when the insert molded part is ejected and cooled, the thermobond adhesive permanently bonds the glass lens and the molten resin.

2. An insert molded part manufactured by the process of claim 1.

3. A process for producing a glass insert molding housing unit comprising the steps of:

providing a glass lens;

providing a front housing unit in the shape of the glass lens;

inserting the glass lens into the front housing unit, aligning the glass lens with the front housing unit such that the glass lens lies within the inside of the front housing unit;

injecting a molten resin, during a glass insert molding process, into space formed by the glass lens and the front housing unit;

wherein the molten resin flows around the glass lens and forms a glass insert molding housing unit, and when the resin hardens, the front housing unit encapsulates the glass lens and the glass lens permanently bonds within the front housing unit.

4. The process according to claim 3 wherein an adhesive promoter is applied to the glass lens prior to the glass insert molding process.

5. The process according to claim 3 wherein the molten resin activates and liquefies the adhesive promoter to create heat and pressure.

6. The process according to claim 3 wherein a thermobond adhesive is applied to the glass lens prior to the glass insert molding process.

7. The process according to claim 3 wherein the molten resin activates and liquefies the thermobond adhesive to create heat and pressure.

8. A glass insert molding housing unit manufactured by the process of claim 3.

14. The process according to claim 4 wherein the molten resin activates and liquefies the adhesive promoter to create heat and pressure.

15. The process according to claim 6 wherein the molten resin activates and liquefies the thermobond adhesive to create heat and pressure.

9. A process for producing an insert molded part comprising the steps of:

providing an inorganic material;

providing a front housing unit;

providing a thermobond adhesive;

applying thermobond adhesive onto the inorganic material;

inserting the inorganic material into the front housing unit, aligning the inorganic material with the front housing unit such that the inorganic material lies within the inside of the front housing unit;

injecting a molten resin, during an insert molding process, into space formed by the inorganic material and the front housing unit;

wherein the molten resin flows around the inorganic material, the molten resin activates and liquefies the thermobond adhesive that is applied onto the inorganic material and forms an insert molded part, and when the insert molded part is ejected and cooled, the thermobond adhesive permanently bonds the inorganic material and the molten resin.

10. The process according to claim 9 wherein the inorganic material is a ceramic.

11. The process according to claim 9 wherein the inorganic material is a metal.

12. The process according to claim 9 wherein the inorganic material is a fabric.

13. An insert molded part manufactured by the process of claim 9.