Resin sheets exhibiting enhanced adhesion to inorganic surfaces

{
  "publication_number": "US9688018B2",
  "country": "US",
  "kind": "B2",
  "title": "Resin sheets exhibiting enhanced adhesion to inorganic surfaces",
  "abstract": "Resin layers and interlayers exhibiting enhanced adhesion to inorganic surfaces, such as glass, are provided. In some cases, the layers and interlayers may comprise at least one adhesion stabilizing agent for improving adhesion to various surfaces, even in the presence of moisture. Such layers and interlayers may be useful, for example, in multiple layer panels, such as, for example, safety glass used in automotive and architectural applications.",
  "claims": [
    "1. A method of making or treating an interlayer, said method comprising: applying a coating material to at least a portion of at least one surface of an ionomeric resin sheet to thereby provide a surface-treated ionomeric resin sheet, wherein said coating material comprises at least one silanol-containing adhesion stabilizing agent or precursor thereto; wherein said surface-treated ionomeric resin sheet comprises one or more surface-treated locations that exhibit a silanol concentration gradient characterized by a surface concentration of elemental silicon that is greater than a mid-thickness concentration of elemental silicon, wherein said ionomeric resin sheet comprises a perimeter region defined as the portion of said ionomeric resin sheet located within 0.25 inches of the perimeter edges of said ionomeric resin sheet, wherein at least a portion of said surface-treated locations are located within said perimeter region and wherein at least 10 percent of the total surface area of said perimeter region is made up of at least a portion of said surface-treated locations.",
    "2. The method of claim 1, wherein said silanol-containing adhesion stabilizing agent or precursor thereto is present in said coating material in an amount of at least 0.25 weight percent, based on the total weight of said coating material.",
    "3. The method of claim 1, wherein said silanol-containing adhesion stabilizing agent or precursor thereto comprises at least one alkoxysilane selected from the group consisting of γ-glycidoxypropyltrimethoxysilane, aminoethylaminopropyltrimethoxysilane, and combinations thereof.",
    "4. The method of claim 1, wherein said applying includes spray coating at least a portion of said coating material onto at least a portion of said surface.",
    "5. The method of claim 1, wherein said method is a method of treating an interlayer; further comprising, prior to said applying, obtaining a pre-formed ionomeric resin sheet, wherein said applying includes applying said coating material to at least a portion of said pre-formed resin sheet to provide said surface-treated ionomeric resin sheet.",
    "6. The method of claim 1, wherein said method is a method of making an interlayer; further comprising, prior to said applying, forming said ionomeric resin sheet, wherein said applying includes applying said coating material to at least a portion of said ionomeric resin sheet after said forming."
  ],
  "description_excerpt": "1. Field of the Invention\n\nThis disclosure relates to polymer resins and, in particular, to adhesion stabilized polymer sheets suitable for use in polymer interlayers, including those utilized in multiple layer panels.\n\n2. Description of Related Art\n\nPolyvinyl butyral (PVB) is often used in the manufacture of polymer sheets that can be used as interlayers in multiple layer panels, including, for example, light-transmitting laminates such as safety glass. PVB is also used in photovoltaic solar panels to encapsulate the panels which are used to generate electricity for commercial and residential applications.\n\nThe term “safety glass” generally refers to a transparent laminate that includes at least one polymer sheet, or interlayer, disposed between two rigid substrates, such as, for example, two sheets of glass. Safety glass is often used as a transparent barrier in architectural and automotive applications, and one of its primary functions is to absorb energy resulting from impact and to prevent objects from passing through the laminate. Additionally, even when the applied force is sufficient to break the glass, the polymeric interlayer helps keep the glass bonded to the laminate, which prevents dispersion of sharp glass shards, thereby minimizing injury and damage to people or objects in the vicinity of the glass. Safety glass may also provide other benefits, such as a reduction in ultraviolet (UV) and/or infrared (IR) radiation, and it may also enhance the aesthetic appearance of window openings through addition of color, texture, and the like.",
  "cpc": [
    "C08J 7/043",
    "B29C 65/48",
    "B32B 17/10688",
    "B32B 17/10798",
    "B32B 17/10981",
    "B32B 2255/10",
    "B32B 2255/24",
    "B32B 2307/542",
    "B32B 2315/08",
    "B32B 2329/00",
    "B32B 2457/12",
    "B32B 37/0038",
    "C08J 2329/14",
    "C08J 7/065",
    "F16B 11/006"
  ],
  "ipc": [
    "B29C 65/48",
    "B32B 17/10",
    "B32B 37/00",
    "C08J 7/043",
    "F16B 11/00"
  ],
  "assignees": [
    "Solutia Inc"
  ],
  "inventors": [
    "Weihong Cui",
    "Steven V. Haldeman",
    "Francois Andre Koran",
    "Pu Zhang"
  ],
  "filing_date": "2015-10-20",
  "publication_date": "2017-06-27",
  "grant_date": "2017-06-27",
  "priority_date": "2014-12-08",
  "application_number": "US-201514887907-A",
  "family_id": "56093478",
  "cited_by_count": 1,
  "citations": [
    "US2282026A",
    "US2282057A",
    "US4584229A",
    "US6372352B1",
    "US20030139520A1",
    "US20020074933A1",
    "US20140210128A1",
    "US20090201583A1",
    "US20080268214A1",
    "US20080280076A1",
    "US20100062236A1",
    "US20130280540A1",
    "US20130022824A1"
  ]
}